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DEPARTMENT OF THE NAVY -- NAVAL HISTORICAL CENTER
805 KIDDER BREESE SE -- WASHINGTON NAVY YARD
WASHINGTON DC 20374-5060

 

Glossary of U.S. Naval Abbreviations


A B C D E F
G H I J K L
M N O P Q R
S T U V W X  Y  Z

 Navy Numbers - FPO (mail address, disguised)


--S--

 S -- First letter in the Navy aircraft designation, indication a scouting plane

 S -- Anti-Submarine Patrol (suffix to plane designation); as, PBM-3S

 S -- Boeing Aircraft Co. (formerly Stearman) (manufacturer's symbol)

 S -- School(s)

 S -- Schweizer Aircraft Co. (manufacturer's symbol)

 S -- Seaman; as S1 (Seaman 1st class)

 S -- Seaplane

 S -- Secret dispatch

 S (No.) -- Senate Bill (Number)

 S -- Sesquiplane

 S -- Sikorsky Aircraft (United Aircraft Corporation) (manufacturer's symbol)

 S -- South

 S3 -- Squadron Operations Officer (USMC)

 S -- Stearman Aircraft Co. (now Boeing) (manufacturer's symbol)

 S (number) -- Commanding Officer (number) Submarine Flotilla

 S -- Supply Department aboard a carrier

 S -- USNR officer designation of Special Service, Unlimited. Formerly (S).

 S -- Vought-Sikorsky (United Aircraft Corporation) (manufacturer's symbol)

 SA -- Air Search Radar (shipborne)

 SA -- Arsine

 S&A -- Bureau of Supplies and Accounts

 SA -- Limited duty

 SA -- Semiautomatic

 SA -- South America

 SA -- Special Artificer

 SA -- Special Assignment

 SA -- USNR officer designation for Special Service, Aviation Non-flying. Formerly S(A).

 SA1 -- USNR officer designation for Special Service, Heavier-than-Air Pilot. Formerly S(A2) and A-VN.

 SA2 -- USNR officer designation for Special Service, Lighter-than-Air Pilot. Formerly S(A2) and A-VN.

 SA3 -- USNR officer designation for Special Service, Heavier-than-Air Pilot. Formerly S(A3) and A-VG.

 SA4 -- USNR officer designation for Special Service, Lighter-than-Air Pilot. Formerly S(A4) and A-VG.

 SA5 -- USNR officer designation for Special Service, Heavier-than-Air Pilot. Formerly S(A5).

 SA6 -- USNR officer designation for Special Service, Lighter-than-Air Pilot. Formerly S(A6) and A-VT.

 SAA -- Small Arms Ammunition

 SAC -- Supreme Allied Command

 SAC -- Supreme Allied Commander

 SACMED -- Supreme Allied Command(er), Mediterranean

 SACO -- Sino-American Cooperative Organization

 SACSEA -- Supreme Allied Command(er), Southeast Asia

 SAD -- Special Artificer, Special Synthetic Training Devices

 SAD -- Support Air Direction

 SADMG -- Special Artificer, Special Devices, Machine Gun Trainer

 SAF -- Southern Attack Force

 SAF -- Strategic Air Force

 SAFPlan -- Submarine Area Frequency Plan

 SAI -- Special Artificer, Instruments

 SAIC -- Small Arms Interpost Competition

 Sail -- "S" in the phonetic alphabet; now obsolete and replaced by "Sugar"

 SAITR -- Special Artificer, Instruments, Typewriter and Office Equipment Repairman

 SAIWR -- Special Artificer, Instruments, Watch Repairman

*SAL -- Salvage

 SAL DIVES -- Salvage Dives

 SALED -- Sailed

 SAN -- USNR officer designation. See SA and N. Formerly S(A)-N.

 SA1N -- USNR officer designation. See SA1 and N. Formerly S(A1)-N.

 SA2N -- USNR officer designation. See SA2 and N. Formerly S(A2)-N.

 SA3N -- USNR officer designation. See SA3 and N. Formerly S(A3)-N.

 SA4N -- USNR officer designation. See SA4 and N. Formerly S(A4)-N.

 SA5N -- USNR officer designation. See SA5 and N. Formerly S(A5)-N.

 SA6N -- USNR officer designation. See SA6 and N. Formerly S(A6)-N.

 SandA -- Bureau of Supplies and Accounts

 SandFSD -- Sea and Foreign Service Duty

 SandFran -- San Francisco, California

 SAO -- Special Artificer, Optical

 SAO -- Support Air Observation

 SAP -- Scouting Amphibian Plan (USCG)

 SAP -- Semi-Armor Piercing

 SAP -- Spot Authorization Plan (WPB)

 SAPC -- Small Arms Post Competition

 SAR -- Semi-Automatic Rifle (Army)

 SAR -- USNR officer designation. See SA and R. Formerly S(A)-R.

 SA1R -- USNR officer designation. See SA1 and R. Formerly S(A1)-R.

 SA2R -- USNR officer designation. See SA2 and R. Formerly S(A2)-R.

 SA3R -- USNR officer designation. See SA3 and R. Formerly S(A3)-R.

 SA4R -- USNR officer designation. See SA4 and R. Formerly S(A4)-R.

 SA5R -- USNR officer designation. See SA5 and R. Formerly S(A5)-R.

 SA6R -- USNR officer designation. See SA6 and R. Formerly S(A6)-R.

 SAR Net -- Support Air Request Net (Communications)

 SASAT -- Shipboard Anti-Submarine Attack Teacher

 Sat -- Saturated

 SAT -- USNR officer designation. See SA and T. Formerly S(A)-T.

 SA1T -- USNR officer designation. See SA1 and T. Formerly S(A1)-T.

 SA2T -- USNR officer designation. See SA2 and T. Formerly S(A2)-T.

 SA3T -- USNR officer designation. See SA3 and T. Formerly S(A3)-T.

 SA4T -- USNR officer designation. See SA4 and T. Formerly S(A4)-T.

 SA5T -- USNR officer designation. See SA5 and T. Formerly S(A5)-T.

 SA6T -- USNR officer designation. See SA6 and T. Formerly S(A6)-T.

 SATFor -- Special Air Task Force

 SATP -- Small arms Target Practice

 SAV -- Allotment for Savings

 SAVBOND -- Allotment for purchase of War Savings Bonds

 SAX -- USNR officer designation. See SA and X. Formerly S(A)-X.

 SA1X -- USNR officer designation. See SA1 and X. Formerly S(A1)-X.

 SA2X -- USNR officer designation. See SA2 and X. Formerly S(A2)-X.

 SA3X -- USNR officer designation. See SA3 and X. Formerly S(A3)-X.

 SA4X -- USNR officer designation. See SA4 and X. Formerly S(A4)-X.

 SA5X -- USNR officer designation. See SA5 and X. Formerly S(A5)-X.

 SA6X -- USNR officer designation. See SA6 and X. Formerly S(A6)-X.

 SB -- First two letters in the Navy aircraft designation, indicating a scouting-bombing plane

 SB -- Secondary Battery

#SB -- Shipbuilding

 SB -- Submarine Base

 Sb -- Switchboard

 SB -- Switchboard Operator

 SB2A-# -- "Bermuda"; single-engine Navy scout-bomber (VSB), manufactured by Brewster

 SBAE -- Stabilized Bombing Approach Equipment

 SBC-# -- Single-engine Navy scout-bomber (VSB), biplane, manufactured by Curtiss

 SB2C-# -- "Helldiver"; single-engine Navy scout-bombers (VSB), manufactured by Curtiss

 SBCo -- Shipbuilding Company

 SBCorp -- Shipbuilding Corporation

 SBD-# -- "Dauntless"; single-engine Navy scout-bomber (VSB), manufactured by Douglas

#SBDC -- Shipbuilding and Drydock Company

#SB&DDCo -- Shipbuilding & Drydock Co. (Federal, Newport News, Sun)

 SBF-# -- "Helldiver"; single-engine Navy scout-bomber (VSB), manufactured by Fairchild (Canada)

 SBN-# -- Single-engine Navy scout-bomber (VSB), manufactured by Naval Aircraft Factory

 SBNO -- Senior British Naval Officer (U.S. controlled port)

 SBNOWA -- Senior British Naval Officer, Western Atlantic

 SBP -- Summary Plot Board

 SBS -- Strategic Balkan Services

 SBU-# -- Single-engine Navy scout-bomber (VSB), biplane, manufactured by Chance-Vought

 SB2U-# -- "Vindicator"; single-engine Navy scout-bomber (VSB), manufactured by Vought-Sikorsky

 SBW-# -- "Helldiver"; single-engine Navy scout-bomber (VSB), manufactured by Canadian Car and Foundry

 SC -- Halifax Slow to United Kingdom (routing designation)

 SC -- Radar type designation for shipborne equipment used in air search

 SC-# -- "Seahawk"; single-engine Navy observation-scout (VOS), manufactured by Curtiss

 S-C -- Secret and Confidential Files

 SC -- Ship's Cook

 SC -- Signal Corps (Army)

 S/C -- Statement of Charges (Army)

 SC -- Strato-cumulus

 SC -- Submarine Chaser (110')

 SC -- Summary Court

 SC -- Supply Corps

 SC -- USN officer designation for Supply Corps

 SC1 -- USNR officer designation for Special Service, Special Communications Duties. Formerly S(C1) and C-VL.

 SC2 -- USNR officer designation for Special Service, Special Communications Duties. Formerly S(C2) and C-VX.

 SCAEF -- Supreme Commander, Allied Expeditionary Force

 SCAJAP -- Shipping Control Administrator Japan

 SCAO -- Senior Civil Affairs Officer

 SCAP -- Supreme Commander Allied Powers (Japan)

 SCAR -- South Carolina

 SCAT -- Service Command Air Transportation

 SCAT -- South Pacific Combat Air Transport (USMC)

 SCB -- Ship's Cook, Butcher

 SC(C) -- Submarine Chaser (110') (Control)

 SCD -- Supply, Commissary and Disbursing

 SCE -- Superintending Civil Engineer (GB)

 SCF -- Support Carrier Force

 Sch -- School

 SCI -- Ship Controlled Intercept (radar)

 SCI -- Supervisory Cost Inspector

 SClk -- Ship's Clerk

 SCM -- Sender's Composition Message

 SCM -- Summary Court Martial

 SCM -- USNR officer designation for General Service, Supply Corps, Merchant Marine. Formerly SC-M.

 SCMR -- USNR officer designation for General Service, Supply Corps, Merchant Marine. Formerly SCM.

 SC1N -- USNR officer designation. See SC1 and N. Formerly S(C1)-N.

 SC2N -- USNR officer designation. See SC2 and N. Formerly S(C2)-N.

*SCO -- Scouting

 SCOFA -- Shipping Control Office, Forward Area

 ScoFor -- Scouting Force

*SCOL -- School

 SCOM -- USNR officer designation for Special Service, Communications Duties. Formerly S(C).

 SCOMA -- Shipping Control Office, Marianas

 SCON -- USNR officer designation. See SCOM and N. Formerly S(C)-N.

 SCOR -- USNR officer designation. See SCOM and R. Formerly S(C)-R.

 ScoRon -- Scouting Squadron

 SCOROR -- Secretary's Committee on Research on Reorganization (Navy)

 SCOT -- USNR officer designation. See SCOM and T. Formerly S(C)-T.

 Scotch -- Firetube boiler

#SCOTRACEN -- Scouting Training Center

 SCOX -- USNR officer designation. See SCOM and X. Formerly S(C)-X.

 SCR(number) -- Signal Corps Radio (number) (Army)

 SCR -- Summary Control Report (Planning and Production)

 SCR -- USNR officer designation for General Service, Supply Corps. Formerly SC.

 SC1R -- USNR officer designation. See SC1 and R. Formerly S(C1)-R.

 SC2R -- USNR officer designation. See SC2 and R. Formerly S(C2)-R.

 SCS -- USNR officer designation for Special Service, Supply Corps. Formerly SC(S).

 SC1T -- USNR officer designation. See SC1 and T. Formerly S(C1)-T.

 SC2T -- USNR officer designation. See SC2 and T. Formerly S(C2)-T.

 SCTC -- Submarine Chaser Training Center

 SCTD -- Scattered

 SCTraCen -- Submarine Chaser Training Center

 SC-V(G) -- USNR officer designation for supply officers, commissioned and warrant, including pay clerks, qualified for general detail afloat or ashore. This classification was abolished in September 1944 and replaced by SC or SC(S).

 SC-V(P) -- USNR officer designation for supply officers (General Service), commissioned in probationary status, and, after qualification and transfer to SC-V(G), available for general detail afloat or ashore. This classification was abolished in September 1944 and replaced by SC(S).

 SC-V(S) -- USNR officer designation for supply officers, commissioned and warrant, qualified for specialist duties. This classification was abolished in September 1944 and replaced by SC or SC(S).

 SCW -- USNR officer designation for Women's Reserve, Supply Corps. Formerly SC(W).

 SC1X -- USNR officer designation. See SC1 and X. Formerly S(C1)-X.

 SC2X -- USNR officer designation. See SC2 and X. Formerly S(C2)-X.

 SD -- Aircraft detection radar for submarines

 S&D -- Single and Double Reduction Gears

 SD -- Special Duty

 SD -- Spectacle Dispenser

 SD -- Supply Department

 SDA -- San Diego, California

 SDAK -- South Dakota

 SDC -- Southern Defense Command (Army)

 SDEM -- USNR officer designation for Special Service, Deck and Engineering Duties, Merchant Marine. Formerly S(DEM).

 SDEN -- USNR officer designation. See SDEM and N. Formerly S(DEM)-N.

 SDER -- USNR officer designation. See SDEM and R. Formerly S(DEM)-R.

 SDET -- USNR officer designation. See SDEM and T. Formerly S(DEM)-T.

 SDEX -- USNR officer designation. See SDEM and X. Formerly S(DEM)-X.

 SDGA -- Single Degaussing Cable

 SDHIRS -- Sub-District Headquarters Induction and Recruiting Station

 SDM -- USNR officer designation for Special Service, Deck Duties, Merchant Marine. Formerly S(DM).

 SDMN -- USNR officer designation. See SDM and N. Formerly S(DM)-N.

 SDMR -- USNR officer designation. See SDM and R. Formerly S(DM)-R.

 SDMT -- USNR officer designation. See SDM and T. Formerly S(DM)-T.

 SDMX -- USNR officer designation. See SDM and X. Formerly S(DM)-S.

 SDO -- Specialist Duty Only

 SDO -- Staff Duty Officer

 SDO -- Station Duty Officer

 SdOpr -- Sound Operator

 SE -- Single-ended, cylindrical boiler

 SE -- Single Engine

 SE -- Southeast

 SE -- USNR officer designation for Special Service, Engineering Duties. Formerly S(E).

 SE1 -- USNR officer designation for Special Service, Special Engineering Duties, equivalent to EDO Hull. Formerly S(E1)

 SE2 -- USNR officer designation for Special Service, Special Engineering Duties, equivalent to EDO Machinery. Formerly S(E2)

 SE3 -- USNR officer designation for Special Service, Special Engineering Duties, equivalent to EDO Electrical. Formerly S(E3)

 SE4 -- USNR officer designation for Special Service, Special Engineering Duties, equivalent to EDO Diesel. Formerly S(E4)

 SEA -- Ships Editorial Association

 SEA -- Southeast Asia (Theater)

"Seabee" -- Member of a Construction Battalion (CB)

 SeaC -- Seacoast

 SEAC -- Southeast Asia Command

"Sea Clutter" -- Echo from surface of sea (sea return) (radar)

 SEAFRON -- Sea Frontier

"Seagull" -- See SOC-#, SO3C-#, SON-#

"Seahawk" -- See SC-#

 SeaS -- Sea School (USMC)

 SEATIC -- Southeast Asia Translation and Interrogation Center

 SEATL -- Seattle, Washington

"Seawolf" -- See TBY-#

 Sec -- Second

*SEC -- Secretary (to the) (of)

*SEC -- Sector

 SecNav -- Secretary of the Navy

 SECP -- Division of Shore Establishments and Civilian Personnel (formed by merger of SOSED and PS&M in 1944; renamed OIR in 1945)

 Secr -- Secret

*SECT -- Section

 SecTaskFlt -- Second Task Fleet

 SectBase -- Section Base

 SecWar -- Secretary of War

 SED -- Shore Establishments Division

 SEFIC -- Seventh Fleet Intelligence Center

 SEM -- USNR officer designation for Special Service, Engineering Duties, Merchant Marine. Formerly S(EM).

 Sema -- Semaphore

 SEMN -- USNR officer designation. See SEM and N. Formerly S(EM)-N.

 SEMR -- USNR officer designation. See SEM and R. Formerly S(EM)-R.

 SEMT -- USNR officer designation. See SEM and T. Formerly S(EM)-T.

 SEMX -- USNR officer designation. See SEM and X. Formerly S(EM)-X.

 Sen -- Senator

*SEN -- Senior

 SEN -- USNR officer designation. See SE and N. Formerly S(E)-N.

 SE1N -- USNR officer designation. See SE1 and N. Formerly S(E1)-N.

 SE2N -- USNR officer designation. See SE2 and N. Formerly S(E2)-N.

 SE3N -- USNR officer designation. See SE3 and N. Formerly S(E3)-N.

 SEN4 -- USNR officer designation. See SE4 and N. Formerly S(E4)-N.

 SENAVAV -- Senior Naval Aviator

 Sent -- Sentence

 Sent conf -- Sentence to be confined

"Sentinel" -- See OY-#

 Sent LP -- Sentenced to lose pay

 Sep -- Separate

 SEPacFor -- Southeast Pacific Force

 SepCen -- Separation Center

*SER -- Serial

 Ser -- Serve; service; serving

 SER -- USNR officer designation. See SE and R. Formerly S(E)-R.

 SE1R -- USNR officer designation. See SE1 and R. Formerly S(E1)-R.

 SE2R -- USNR officer designation. See SE2 and R. Formerly S(E2)-R.

 SE3R -- USNR officer designation. See SE3 and R. Formerly S(E3)-R.

 SE4R -- USNR officer designation. See SE4 and R. Formerly S(E4)-R.

 SerForSoPacSubCom -- Service Force South Pacific Subordinate Command

 Seron -- Service Squadron

 SERRON -- Service Squadron

*SERV -- Service

 ServComFMFPac -- Service Command, Fleet Marine Force, Pacific

 ServDiv -- Service Division

 ServFor -- Service Force

 ServLant -- Service Force, Atlantic Fleet

 ServLantSubOrdComd -- Service Force, Atlantic Fleet, Subordinate Command

 SERV NO -- Service Number

 Servon -- Service Squadron

 ServPac -- Service Force, Pacific Fleet

 Servron -- Service Squadron

 ServSoWesPac -- Service Force, Southwest Pacific Fleet

 SES -- Physically on board serving sentence of court martial, not ship's company

 SES -- Strategic Engineering Survey

 SESE -- Secure Echo-Sounding Equipment (sonar)

 SET -- USNR officer designation. See SE and T. Formerly S(E)-T.

 SE1T -- USNR officer designation. See SE1 and T. Formerly S(E1)-T.

 SE2T -- USNR officer designation. See SE2 and T. Formerly S(E2)-T.

 SE3T -- USNR officer designation. See SE3 and T. Formerly S(E3)-T.

 SE4T -- USNR officer designation. See SE4 and T. Formerly S(E4)-T.

 Sett -- Settlement

 SETT -- Submarine Escape Training Tank

 SEV -- Severn

#SEVENPERDAIR -- A per diem of seven dollars in lieu of subsistence will be allowed while in an air travel status

 SEX -- USNR officer designation. See SE and X. Formerly S(E)-X.

 SE1X -- USNR officer designation. See SE1 and X. Formerly S(E1)-X.

 SE2X -- USNR officer designation. See SE2 and X. Formerly S(E2)-X.

 SE3X -- USNR officer designation. See SE3 and X. Formerly S(E3)-X.

 SE4X -- USNR officer designation. See SE4 and X. Formerly S(E4)-X.

 SF -- San Francisco, California

 SF -- Scouting Force

 SF -- Shipfitter

 S&F -- Sound and Flash

 SF -- Surface Search Radar

 SFCB -- Shipfitter, Construction Battalion

 SFCBB -- Shipfitter, Construction Battalion, Blacksmith

 SFCMB -- Shipfitter, Construction Battalion, Mechanical Draftsman

 SFCBP -- Shipfitter, Construction Battalion, Pipe Fitter and Plumber

 SFCBR -- Shipfitter, Construction Battalion, Rigger

 SFCBS -- Shipfitter, Construction Battalion, Steelworker

 SFCBW -- Shipfitter, Construction Battalion, Welder

 SFCP -- Shore Fire Control Party

 SFDS -- Standby Fighter Director Ship

 SFIC -- San Francisco Information Center (Army Air Warning Service)

 SFNSY -- San Francisco Naval Shipyard

 SFPOE -- San Francisco Port of Embarkation

 S&FSD -- Sea and Foreign Service Duty (pay status)

 S&FSD(A) -- Sea and Foreign Service Duty (on aviation pay)

 S&FSD(S) -- Sea and Foreign Duty (on submarine pay)

 SFSR -- Shipfitter, Ship Repair

 SFSRC -- Shipfitter, Ship Repair, Chipper-Caulker

 SFSRD -- Shipfitter, Ship Repair, Diver

 SFSRF -- Shipfitter, Ship Repair, Steelworker-Anglesmith

 SFSRL -- Shipfitter, Ship Repair, Driller-Reamer

 SFSRP -- Shipfitter, Ship Repair, Pipe Fitter-Plumber

 SFSRR -- Shipfitter, Ship Repair, Riveter

 SFSRS -- Shipfitter, Ship Repair, Shipfitter

 SFSRW -- Shipfitter, Ship Repair, Welder

 SG -- Qualified in Submarines (limited)

 SG -- Surface Search Radar

 SG -- Surgeon General (Army)

 SG -- Sydney or St. Johns, Newfoundland to Greenland (routing designation)

 Sgl -- Single Reduction Gears

 SGP -- Secondary Gun Pointer

 Sgt -- Sergeant

 SgtMaj -- Sergeant Major

 SHAEF -- Supreme Headquarters, Allied Expeditionary Force

 SHC -- Superheat Control (boilers)

 SHF -- Super High Frequency

 Ship -- Shipboard

*SHO -- Shore

#SHOROUTFUBINT -- The Secretary of the Navy has determined that this employment on shore duty beyond the seas in required by the public interests

#SHORPUNINT -- The Secretary of the Navy has determined that this employment on shore duty is required by the public interests

"SHOTS" -- A Gunner's Mate in charge of a small AA gun (20MM, 50cal)

 SHP -- Shaft horsepower

 SI -- USNR officer designation for Special Service, Intelligence Duties. Formerly S(I).

 SIA -- Air Intelligence Service (Italy)

 SID -- Security and Intelligence Service (Army)

*SIG -- Signal

 SIGCUM -- Communications Security Publication-151- (Army)

 SIGSALY -- Scrambled voice transmission (Army)

 Sigtot -- Signal Corps One-Time Tape

 SILO -- Security Intelligence Liaison office (Central Mediterranean Forces)

 SIM -- Servizio Informazioni Militaire (Italy)

 SIME -- Security Intelligence, middle East

 SIN -- USNR officer designation. See SI and N. Formerly S(I)-N.

 SINO -- Chines

 SIO -- Ship's Information Officer

 SIR -- USNR officer designation. See SI and R. Formerly S(I)-R.

 SIS -- Secret Intelligence Service (GB)

 SIS -- Naval Intelligence Service (Italy)

*SIT -- Situation

 SIT -- USNR officer designation. See SI and T. Formerly S(I)-T.

 SIW -- Self-inflicted wound

 SIX -- USNR officer designation. See SI and X. Formerly S(I)-X.

 SJ -- San Juan, Puerto Rico

 SJ -- Surface search radar for submarines

 SK -- Air search radar (shipborne)

 Sk -- Sketch

 S&K -- Snow and Knobstedt (ship engines)

 SK -- Storekeeper

 SKCB -- Storekeeper, Construction Battalion, Stevedore

 SKD -- Storekeeper, Disbursing

 Sked -- Schedule

 Skiatron -- British term for Projection Plan Position Indicator (PPPI)

 SKT -- Storekeeper, Technical

 SKV -- Storekeeper, Aviation

"Skymaster" -- See R5D-4

"Skytrain" -- See R4D-1-5-6-7

"Skytrooper"-- See R4D-2-3-4

 SL -- Large signal search light

 S-L -- Sound locator

 SL -- Submarine Qualification Lapsed

 SL -- Support line

 SL -- Surface search radar

 SL -- USNR officer designation for Special Service, legal Specialist. Formerly S(L).

 SLCU -- Standard Landing Craft Unit

 SLN -- USNR officer designation. See SL and N. Formerly S(L)-N.

 SLOE -- Special List of Equipment

 SLP -- Scouting landplane

 SLR -- USNR officer designation. See SL and R. Formerly S(L)-R.

 SLT -- USNR officer designation. See SL and T. Formerly S(L)-T.

 SLt&SdL -- Searchlight and Sound Locator

 SLX -- USNR officer designation. See SL and X. Formerly S(L)-X.

 SM -- Air and surface search radar

 SM -- Salvage Mechanic

 SM -- Shipment Memorandum

 SM -- Signalman

 SM -- Soldier's Medal

 Sm -- Steamotive

 S/M -- Submarine (GB)

 SM -- Submarine, Mine Laying

 S/M -- Submarine pay

 SMA -- Ship's Material Account

#SMACRATRACEN -- Small Craft Training Center

 SMAW -- Second Marine Aircraft Wing

 SMG -- Sub-Machine Gun

 SMO -- Senior Medical Officer

 SMP -- Sound Motion Picture Technician

 SMPO -- Sound Motion Picture Operator

 S-MPR -- Semi-Monthly Progress Reports

 SMR -- Special money Requisition

 SMS -- Marine Service Squadron

 SMSD -- Submarine Detector Ship's Magnet

 SN -- First two letters in the Navy aircraft designation, indicating a scout-training plane

 SN -- Portable surface search radar

 SN -- USNR officer designation. See S and N. Formerly (S)-N.

 SNA -- Student Naval Aviator

 SNAFU -- Situation Normal, All Fouled Up

 SNAP -- Senior Naval Aviator Present

 SNAP -- Student Naval Aviation Pilot

 SNAP(G) -- Student Naval Aviation Pilot (Glider)

 SNB-1 -- "Kansan"; twin-engine Navy training plane (VSN(M)), manufactured by Beech

 SNB-2-2C-2H -- "Navigator"; twin-engine Navy training plane (VSN), manufactured by Curtiss

 SNC-# -- "Falcon"; Navy single-engine training plane (VN), manufactured by North American

 SNJ-# -- "Texan"; Navy training plane (VN), manufactured by North American

 SNL -- Standard Nomenclature List (Army)

 SNM -- Senior Naval Member

 SNOL -- Senior Naval Officer, Landings (GB)

 SNOP -- Senior Naval Officer Present (US)

 SNOPG -- Senior Naval Officer, Persian Gulf (GB)

 SNORSCA -- Senior Naval Officer, Red Sea and Canal Area (GB)

 SNOT -- Senior Naval Officer, Transport (GB)

 Snow -- Receiver noise seen on PPI scope (amplitude indication)

 SNTFC -- Senior Naval Task Force Commander

 SNV-# -- "Valiant"; Navy training plane (VN), manufactured by Vultee

 SO -- First two letters in the Navy aircraft designation, indicating a scouting-observation plane

 SO -- Radar type designation for shipborne equipment used in surface search

 SO -- Secretary's Office

*SO -- South(ern)

 SO -- Special Orders (Army)

 SO -- Supply Officer

 SO -- Surface search radar

 SO -- USNR officer designation for Special Service, Ordnance Duties. Formerly S(O).

 SO1 -- USNR officer designation for Special Service, Special Ordnance Duties in Aviation Ordnance. Formerly S(C1).

 SO2 -- USNR officer designation for Special Service, Special Ordnance Duties in Aviation Ordnance. Formerly S(O2)

 SO3 -- USNR officer designation for Special Service, Special Ordnance Duties in Fire Control and Guns. Formerly S(O3).

 SO4 -- USNR officer designation for Special Service, Special Ordnance Duties in Ammunition and Explosives. Formerly S(O4).

 SO5 -- USNR officer designation for Special Service, Special Ordnance Duties in Torpedoes. Formerly S(O5).

 SO6 -- USNR officer designation for Special Service, Special Ordnance Duties in Under Water Ordnance. Formerly S(O6).

 SOA -- Speed of Approach

 SOAG -- Senior Officer Assault Group (GB)

 SOASC (I) -- Senior Officer Assault Ships and Craft (India) (GB)

 SOC-# -- "Seagull"; single-engine Navy scout-observation (VSO) landplane or seaplane, biplane, manufactured by Curtiss

 SO3C-# -- "Seagull"; single-engine Navy scout-observation (VS) landplane and seaplane, manufactured by Curtiss

 SoCalSec -- Southern California Sector, Western Sea Frontier

 SoChinaFor -- South China Force

 SOCMC -- Special Order of the Commandant of the Marine Corps (USMC)

 SOD -- Small Object Detector

 SOE -- Secret Operations Executive (British research unit corresponding to OSS)

 SOE -- Special Operation Executive (GB)

 SoEastPac -- Southeast Pacific Force (later, Command)

 SOEF Kandy -- Senior Officer, Eastern Fleet, Kandy (GB)

 Sofar -- Sound Fixing and Ranging

 SOG -- Special Operations Group

 SOI -- Signal Operations Instructions (Army)

 SOIC -- Supply Officer-in-Charge

 SOINC -- Supply Officer-in-Charge

 SOIS -- Senior Officer, Inshore Squadron (GB)

 SoLant -- South Atlantic Force (later, Command)

 SoLantFor -- South Atlantic Force

 SOLS -- Solomon Islands

 SOM -- Sonarman; Soundman

 SOMD -- Secretary's Office, General Counsel

 SOME -- Secretary's Office, Management Engineer

 SOMH -- Sonarman, Harbor Defense

 SOMP -- Sydney Ocean Meeting Point

 SON-# -- "Seagull"; single-engine Navy scout-observation (VSO) seaplane, biplane, manufactured by Naval Aircraft Factory

 SON -- USNR officer designation. See SO and N. Formerly S(O)-N.

 SO1N -- USNR officer designation. See SO1 and N. Formerly S(O1)-N.

 SO2N -- USNR officer designation. See SO2 and N. Formerly S(O2)-N.

 SO3N -- USNR officer designation. See SO3 and N. Formerly S(O3)-N.

 SO4N -- USNR officer designation. See SO4 and N. Formerly S(O4)-N.

 SO5N -- USNR officer designation. See SO5 and N. Formerly S(O5)-N.

 SO6N -- USNR officer designation. See SO6 and N. Formerly S(O6)-N.

 SONA -- School of Naval Administration, Leland Stanford University

 Sonar -- Sound, Navigation and Ranging

 SOND -- Secretary's Office, Navy Department

 SONOM -- Sonar countermeasures and deception

 SONRD -- Secretary's Office, Office of Research and Development

 SOP -- Senior Officer Present

 SOP -- Standard Operating Procedure

 SOPA -- Senior Officer Present Afloat

 SOP(A) -- Senior Officer Present (Ashore)

 SoPac -- South Pacific Area and Force (later, South Pacific Command)

 SoPacBaCom -- South Pacific Base Command

 SoPacComs -- South Pacific Communications

 SoPat -- South China Patrol

 SOPUS -- Senior (US) Officer Present

 SOR -- USNR officer designation. See SO and R. Formerly S(O)-R.

 SO1R -- USNR officer designation. See SO1 and R. Formerly S(O1)-R.

 SO2R -- USNR officer designation. See SO2 and R. Formerly S(O2)-R.

 SO3R -- USNR officer designation. See SO3 and R. Formerly S(O3)-R.

 SO4R -- USNR officer designation. See SO4 and R. Formerly S(O4)-R.

 SO5R -- USNR officer designation. See SO5 and R. Formerly S(O5)-R.

 SO6R -- USNR officer designation. See SO6 and R. Formerly S(O6)-R.

 SORA -- Secretary's Office, Records Administration

 SORG -- Submarine Operations Research Group

 SORNE (I) -- Senior Officer, Royal Naval Establishment (India) (GB)

 SORR -- Submarine Operations Research Report (by SORG)

 SOS -- Radio Distress Call

 SOS -- Services of Supply (Army)

 SOSED -- Secretary's Office, Shore Establishments Division (incorporated into SECP, 1944)

 SOSSPA -- Service of Supply, South Pacific Area

 SOSU -- Scout Observation Service Unit

 SOT -- USNR officer designation. See SO and T. Formerly S(O)-T.

 SO1T -- USNR officer designation. See SO1 and T. Formerly S(O1)-T.

 SO2T -- USNR officer designation. See SO2 and T. Formerly S(O2)-T.

 SO3T -- USNR officer designation. See SO3 and T. Formerly S(O3)-T.

 SO4T -- USNR officer designation. See SO4 and T. Formerly S(O4)-T.

 SO5T -- USNR officer designation. See SO5 and T. Formerly S(O5)-T.

 SO6T -- USNR officer designation. See SO6 and T. Formerly S(O6)-T.

 SOTB -- Secretary's Office, Transportation Branch

 SoWesPac -- Southwest Pacific Command

 SoWesSeaFron -- Southwest Sea Frontier

 SOX -- USNR officer designation. See SO and X. Formerly S(O)-X.

 SO1X -- USNR officer designation. See SO1 and X. Formerly S(O1)-X.

 SO2X -- USNR officer designation. See SO2 and X. Formerly S(O2)-X.

 SO3X -- USNR officer designation. See SO3 and X. Formerly S(O3)-X.

 SO4X -- USNR officer designation. See SO4 and X. Formerly S(O4)-X.

 SO5X -- USNR officer designation. See SO5 and X. Formerly S(O5)-X.

 SO6X -- USNR officer designation. See SO6 and X. Formerly S(O6)-X.

 SP -- San Pedro, California

 S/P or SP -- Seaplane

 SP -- Section Patrol

 SP -- Security Publication

 SP -- Shore Patrol

 SP -- Single Purpose Gun

 SP -- Smokeless Powder

 SP -- Specialist

 SP -- Qualified in Submarine Training

 SP -- Sub-Professional (Civil Service employees designation)

 SP -- Summary Plotter (radar)

 SPA -- South Pacific Area

 SpA -- Specialist, Physical Training Instructor

 SPAB -- Supply, Priorities and Allocations Board

 SPARS -- Women's Reserve U.S. Coast Guard. The word SPAR was coined from the initials of the Coast Guard motto: "Semper Paratus" (Always Ready).

 SpAst -- Special Assistant

 SPATS -- South Pacific Air Transportation Service

 SpC -- Specialist, Classification Interviewer

 SPC -- Standard Products Committee

 SpCW -- Specialist, Chemical Warfare

 SPD -- Southern Procurement Division

 SpD -- Specialist, Animal Handler

 Spd -- Speed

 SPDC -- Spare Parts Distributing Center

 Spdltr -- Speed letter

 Spec -- Special

 Spec -- Specialist

 Spec -- Specification

 SPEC -- USNR officer designation for Special Service, Reserve Pay Clerk

 SpeNavO -- Special Naval Observer

 SpEPS -- Specialist, Motion Picture Server-Booker

 SpERW -- Specialist, Recreation and Welfare Assistant

 SpF -- Specialist, Firefighter

 SpG -- Specialist, Gunnery

 SpGM -- Specialist, Gunnery, Aviation Free Gunnery Instructor

 SpGN -- Specialist, Gunnery, Anti-Aircraft Gunnery Instructor

 SpI -- Specialist, Punched Card Accounting Machine Operator

 Spl -- Special; Specialist

 SpLT -- Specialist, Link Trainer Instructor

 SplW -- Special Warrant

 SpM -- Mail Clerk

 SPM -- Self-propelled mount

 SPO -- Shore Patrol Officer

 SpO -- Specialist, Inspector of Naval Material

 SpOAV -- Specialist, Inspector of Aviation Material

 SpOEN -- Specialist, Engineering Inspector

 SpOOR -- Specialist, Ordnance Inspector

 SpOPE -- Specialist, Petroleum Technician

 SPORT -- Support

 SportFor -- Support Force

 SPOT -- Spotter

 SpP -- Specialist, Photographic Specialist

 SpPLB -- Specialist, Photographer, Laboratory

 SpPMP -- Specialist, Motion Picture Production

 SpPPG -- Specialist, Photogrammetry

 SpPR -- Specialist, Public Relations (USCG)

 SPPS -- Specialist, Port Security (USCG)

 SpPVM -- Specialist, V-Mail

 SpQ -- Specialist, Communications Specialist

 SpQCR -- Specialist, Specialist, Communications Specialist, Cryptographer

 SpQIN -- Specialist, Communications Specialist, Radio Intelligence

 SpQRP -- Specialist, Communications Specialist, Registered Publication Clerk

 SpQTE -- Specialist, Communications Specialist, Technician

 SpR -- Specialist, Recruiter

 S&PResDis -- Severn and Potomac Reserve District (USMC)

 SpS -- Specialist, Personnel Supervisor (Women's Reserve)

 SpS -- Specialist, Shore Patrol and Security

 SPSA -- Special Projects School for Air

 SpSPS -- Specialist, Personnel Supervisor, V-10

 SpT -- Specialist, Teacher

 SpTLT -- Specialist, Link Trainer Instructor

 SP(TR) -- Specialist, (Transportation) (USCG)

 SPU -- Special Projects Unit

 SpU -- Specialist, Utility (Women's Reserve)

 SpV -- Specialist, Transport Airman

 SpW -- Specialist, Chaplain's Assistant

 SpX -- Specialist, not elsewhere classified

 SpXAC -- Specialist, Archivist

 SpXAR -- Specialist, Artist

 SpXBL -- Specialist, Ballistics

 SpXCC -- Specialist, Cable Censor

 SpXCG -- Specialist, Crystal Grinder

 SpXCT -- Specialist, Cartographer

 SpXDI -- Specialist, Discharge Interviewer

 SpXED -- Specialist, Engineering Draftsman

 SpXFP -- Specialist, Fingerprint Expert

 SpXGU -- Specialist, Gage Specialist

 SpXID -- Specialist, Intelligence Duties

 SpXIR -- Specialist, Interpreter

 SpXJO -- Specialist, Journalist

 SpXKP -- Specialist, Key Punch Operator and Supervisor

 SpXNC -- Specialist, Naval Correspondent

 SpXOP -- Specialist, Special Project

 SpXPC -- Specialist, Position Classifier

 SpXPI -- Specialist, Pigeon Trainer

 SpXPL -- Specialist, Plastic Expert

 SpXPR -- Specialist, Public Information

 SpXQM -- Specialist, Operations--Plotting and Chart Work

 SpXRL -- Specialist, Research Laboratory

 SpXRS -- Specialist, Armed Forces Radio Service and Special Naval Radio Units

 SpXRT -- Specialist, Passenger Transportation

 SpXSB -- Specialist, Telephone Switchboard Operator and Supervisor

 SpXST -- Specialist, Strategic Services

 SpXTD -- Specialist, Topographic Draftsman

 SpXTS -- Specialist, Air Stations Operations Desk--Time Shack

 SpXVA -- Specialist, Visual Training Aids

 SpY -- Specialist, Control Tower Operator

 Sq -- Squadron

 Sqdn -- Squadron

 Sqn -- Squadron

 SR -- Air Search Radar Receiver (shipborne)

 SR -- Seaplane Reconnaissance Aircraft

 S/R -- Service Record (Army)

 SR -- Shipment Request

 SR -- Ship Repair Ratings

 SR -- Sound Rating (Army)

 3SR -- Internal Delivery Teletype (intra-ship)

 SR -- USNR officer designation. See S and R. Formerly (S)-R.

 SRB -- Seaplane Repair Base

 SRB -- Service Record Book (USMC)

 SRF -- Submarine Repair Facility

 SRL -- Serial

 SrMbr -- Senior Member

 SRNC -- Severn River Naval Command

 S/RS -- Staff Returns (USMC)

 SRTU -- Ship Repair Training Unit

 SRU -- Seaplane Reconnaissance Unit

 SRU -- Ship Repair Unit

 SRU -- Submarine Repair Unit

 SS -- High frequency radar, directional

 SS -- Selectee (USMC)

 SS -- Selective Service

 SS -- Sharpshooter (USMC)

 SS -- Single-seated

 SS -- Steamship

 SS -- Submarine

 SS -- Submarine Qualification

 SS -- Submarine Studies (by SORG)

 SS -- Sworn Statement

 SSA -- Ship's Stores Ashore

 SSA -- Signal Security Agency

 SSC -- Submarine Supply Center

 SS&CS -- Ship's Stores and Commissary Stores

 SSD -- Scrap Salvage Division (BuS&A)

 SSD -- Stabilized Ship Detector

 SSDB -- Shore Station Development Board

 SSF -- Single-seated fighter

 SSF -- Special Service Force

 SSF -- Ship's Service Force

 SSM -- Silver Star Medal

 SSMB -- Ships' Service Man, Barber

 SSMC -- Ship's Service Man, Cobbler

 SSML -- Ship's Service Man, Laundryman

 SSMT -- Ship's Service Man, Tailor

 SSP -- Scouting seaplane

 SSP -- Ship's Stores Profit

 SSPN -- Ship's Stores and Profit, Navy

 SSR -- Spin Stabilized Rockets

 SSU -- Special Service Unit

 SSU -- Squadron Service Unit (Aircraft)

 SSU -- Strategic Services Unit; formerly, Office of Strategic Service (OSS)

 S/T -- Shipping Ticket (Army)

 S/T -- Sonic Telegraphy

 ST -- Steward

 ST -- Stockton

 ST -- Stratus

 ST -- Type of submarine radar used for surface search and ranging while submerged

 ST -- USNR officer designation. See S and T. Formerly (S)-T.

*STA -- Station

 Sta -- Stationary

 STAD -- Special Temporary Aviation Duty (USMC)

 STAG -- Special Task Air Group

*STAN -- Standard

#STANLANCRU -- Standard Landing Craft Unit

 STAR -- Specialized Training and Reassignment (Army)

 Stat -- Statues-at-Large of the United States

 Stbd -- Starboard

 STD -- Physically on board under instruction; not ship's company

 Std -- Steward

 StdA -- Steward's Assistant

 StdB -- Steward's Branch (USMC)

 Ste -- Steward (Officer's) (USMC)

 Steno -- Stenographer

 Stereo -- Stereoscopic

 SteT -- Steward, technical (USMC)

 StfSgt -- Staff Sergeant (USMC)

 STG -- Absent in straggler status

 Stinger Dog Project -- A drone boat project

 StM -- Steward's Mate

 STO -- Storekeeper (USCG)

 STOCK -- Stockton, California

 STP -- Stop

 StrAFPOA -- Strategic Air Force, Pacific Ocean Area

 Strag -- Straggler

 StrAirPoa -- Strategic Air Force, Pacific Ocean Areas

 STRG -- Straggler

 STIK -- Striking

 STT -- Stenographer, Medical

 STU -- Service Trials Unit

 Stud -- Student

 STV -- Steam Tank Vessel

 SU -- Service Unit (Army)

 SUB -- Submarine Service

 SubAd -- Submarine Force, Pacific Fleet Administration

 SubAdMI -- Submarine Force, Pacific Fleet Administration, Mare Island

 SuBase -- Submarine Base

 SubBase -- Submarine Base

 SubCom -- Subordinate Command, Service Force, Pacific Fleet

 SubDiv -- Submarine Division

 SubLant -- Submarine Force, Atlantic Fleet

 Subm -- Submerged

 SUBOR -- Subordinate

 SuborCom -- Subordinate Command

 SuborComd -- Subordinate Command

 SuborComdServLant -- Subordinate Command, Service Force, Atlantic Fleet

 SuborComdServPac -- Subordinate Command, Service Force, Pacific Fleet

 SubPac -- Submarine Force, Pacific Fleet

 SubPacAd -- Submarine Force, Pacific Fleet, Administrative Command

 SubPacSubordCom -- Submarine Force, Pacific Fleet, Subordinate Command

 SubRon -- Submarine Squadron

 SUBRU -- Submarine Repair Unit

 SUBS -- Subsistence Allowances

 SubScoFor -- Submarine Scouting Force (Pacific Fleet)

 SubsLant -- Submarines, Atlantic Fleet

 SubsPac-- Submarines, Pacific Fleet

 SubsSoWesPac -- Submarines, Southwest Pacific Force

#SUCHTRANS -- For such transportation as he may designate

#SUCHTRANSVAIL -- (via) Such transportation as may be available

 SUDAM -- Sunk or Damaged

 Sugar -- "S" in the phonetic alphabet, replacing the obsolete "Sail"

 SumCM -- Summary Court Martial (Army)

 Su or Du -- Single or double uptake (boilers)

*SUP -- Supply

 SupCom -- Supreme Command

 SupCon -- Superintending Constructor

 Super Sniffer -- A racon

 Super Scarab -- naval aircraft engine, 7 cylinders, manufactured by Warner

 SuPier -- Naval Supply Pier

 SupInsMat -- Supervising Inspector of Naval Material

#SUUPOFCOMD -- Supply Officer-in-Command

 SupSgt -- Supply Sergeant (USMC)

 SupShip -- Supervisor of Shipbuilding

*SUPT -- Superintendent (ing)

 SuptNavObsy -- Superintendent, Naval Observatory

 Supv -- Supervisor

 SUR -- Physically on board as a "Survivor"

 Sur -- Surrender(ed)

 SurGen -- Surgeon General

*SURV -- Survey

 SUS -- Suspended (aviation)

 SUSNO -- Senior U.S. Naval Officer

 SUSP -- Vessels which will have construction terminated upon the completion of specified items

 SV -- Selective Volunteer (U.S. Navy)

 SV -- Type of submarine radar for aircraft warning

 S/V -- Surface Vessel

 SVC -- Service

 SvC -- Service Command (Army)

 SW -- Secretary of War

 SW -- Security Watch

 SW -- Ship's Warrant (USMC)

 SW -- Southwest

 SWA -- Southwest Approaches (to GB)

 SWETTU -- Special Weapons Experimental Tactical Test Unit

 SWNCC -- State, War, Navy Coordinating Committee

 SWOD -- Special Weapons Ordnance Devices

 SWPA -- Southwest Pacific Area

 SWPA -- Surplus War Property Administration

 SWPC -- Smaller War Plants Corporation

 SWPF -- Southwest Pacific Force

 SWTTEU -- Special Weapons Test and Tactical Evaluation Unit

 SX -- Search and altitude determining radar with constant sweep

 SX -- Sectional Express (boiler)

 SX -- USNR officer designation. See S and X. Formerly (S)-X.

Note: Where the same abbreviation has more than one meaning, the several meanings have been arranged alphabetically. Abbreviations preceded by an asterisk (*), other than Navy numbers, may never be used singly; those preceded by the symbol for number (#) are the Bureau of Personnel Condensation Code for use in dispatch orders to personnel.


Glossary of US Naval Abbreviations
A B C D E F
G H I J K L
M N O P Q R
S T U V W X  Y  Z

 Navy Numbers - FPO (mail address, disguised)

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March 20, 2000