List of U.S. Navy acronyms
The United States Navy, like any organization, produces its own acronyms and abbreviations, which often come to have meaning beyond their bare expansions. United States Navy personnel sometimes colloquially refer to these as NAVSpeak. Like other organizational colloquialisms, their use often creates or reinforces a sense of esprit and closeness within the organization.
Official acronyms
For a comprehensive list of unit organizations in the United States Navy, see List of units of the United States Navy.#
1MC – 1 Main Circuit, shipboard public address system2MC – 2 Main Circuit, same as 1MC, but limited to the engine room3M – Maintenance and Material Management 3MA – Maintenance and Material Management Assistant3MC – Maintenance and Material Management Coordinator3MI – Maintenance and Material Management Inspection5MC – 5 Main Circuit, Carrier Flight Deck address system27MC – Battle Stations Main Circuit: Control Room, Sonar Room, Radio Room, and Fire Control address systemA
A-STRIKE – Assistant STRIKE Operations Officer AA – Airman Apprentice AAW – Anti-Air WarfareAB – Aviation Boatswain's MateABE – Aviation Boatswain's Mate – Equipment ABF – Aviation Boatswain's Mate ABFD – Advanced Base Floating Dry Dock, class/type of shipABH – Aviation Boatswain's Mate AC – Air Traffic ControlmanACR – Armored cruiser, class/type of shipAD – Auxiliary, Destroyer Tender, class/type of shipAD – Aviation Machinist's MateADCON – Administrative controlADNS – Automated Digital Network SystemADSW – Active Duty Special Work ADT – Active Duty Training AE – Auxiliary, Explosives, class/type of ship. An ammunition ship.AE – Aviation Electrician's MateAF – Aviation Photographer's MateAFC – Aviation Fire ControlAFCM – Master Chief Aircraft MaintenancemanAFFF – Aqueous Film Forming FoamAFS – Auxiliary, Fast Stores, class/type of ship. A supply ship that carries a little bit of everything, nicknamed "7-11"AFSB – Afloat Forward Staging BaseAG – Aerographer's MateAIMD – Aircraft Intermediate Maintenance Department AK – Auxiliary, Cargo, class/type of ship. An attack transport.AK – Aviation Storekeeper ALNAV – All NavyALPO – Assistant Lead Petty OfficerAM – Aviation Structural MechanicAME – Aviation Structural Mechanic – Environmental, Aviation Mechanical ExceptionAMH – Aviation Structural Mechanic – HydraulicsAMMRL – Aviation Maintenance Material Readiness ListAMO – Assistant Maintenance OfficerAMS – Aviation Structural Mechanic – StructuresAN – AirmanAO – Auxiliary, Fleet Oil, class/type of ship; Aviation OrdnancemanAOE – Auxiliary, Oil, Explosives, class/type of ship.AOR – Auxiliary, Oil, Replenishment, class/type of shipAOW – Auxiliaryman of the WatchAPI – Aviation Preflight IndoctrinationAR – Auxiliary, Repair, class/type of ship. A repair shipAR – Airman Recruit ARRS – Afloat Readiness Reporting SystemARS – Auxiliary, Repair and Salvage, class/type of shipAS – Auxiliary, Submarine Tender, class/type of shipAS – Aviation Support Equipment TechnicianASAU – Air Search and Attack UnitASR – Auxiliary, Submarine Rescue, class/type of shipASUW – Anti-Surface WarfareASVAB – Armed Services Vocational Aptitude BatteryASW – Auxiliary Seawater systemASW – Anti-Submarine WarfareASWO – Anti-Submarine Warfare OfficerAT – Annual Training AT – Aviation Electronics TechnicianATS – Auxiliary, Towing and Salvage, class/type of shipAUTEC – Atlantic Undersea Test and Evaluation CenterAUXO – Auxiliaries OfficerAVCM – Master Chief Avionics TechnicianAVGAS – Aviation GasolineAWCS – Assistant Work Center SupervisorAZ – Aviation Maintenance AdministrationmanB
B/N – Bombardier/Navigator; NFO in A-3B Skywarrior, A-5A Vigilante and A-6 Intruder attack aircraft BAM – Bad Ass Marine BB – BattleshipBCD – Bad Conduct Discharge BCGs – Birth Control GlassesBCM – Beyond Capable Maintenance. Equipment status that indicates the item cannot be repaired and must be sent out for rework or disposed.BEQ – Bachelor Enlisted QuartersBESS – Basic Enlisted Submarine SchoolBJOQ – Blue Jacket of the QuarterBJOY – Blue Jacket of the YearBLUF – Bottom Line Up FrontBM – Boatswain's MateBMOW – Boatswain's Mate of the WatchBOHICA – Bend Over Here It Comes AgainBOL – BUPERS OnlineBT – Boiler TechnicianBU – BuilderBUDS – Basic Underwater Demolition SchoolBUMED – Bureau of Medicine and SurgeryBUPERS – Bureau of Naval PersonnelBUSANDA – Bureau of Supplies and AccountsBUWEPS – Bureau of Naval WeaponsBZ – Bravo ZuluC
CA – Construction ApprenticeCA – Cruiser, Armoured, class/type of ship. Heavy Cruiser CAG – Cruiser, Attack, Guided Missile, class/type of ship. Guided Missile Heavy Cruiser CAG – Commander, Air GroupCAPT – CaptainCBMU – Construction Battalion Maintenance UnitCASCAN – CASREP Cancellation or Cancellation of Casualty ReportCASCOR – CASREP Correction or Correction of the Casualty in the Casualty ReportCASREP – Casualty ReportCC – Cruiser, class/type of shipCCC – Comprehensive Communications CheckCDB – Career Development Board- CDC – Combat Direction Center CDO – Command Duty OfficerCDR – CommanderCE – Construction ElectricianCEC – Civil Engineer CorpsCEC – Cooperative Engagement CapabilityCED – Current Enlistment DateCENTCOM – U.S. Central Command CF – Charlie Foxtrot CG – Cruiser, Guided Missile, class/type of shipCGN – Cruiser, Guided Missile, Nuclear, class/type of ship CHC – Chief of Chaplains of the United States NavyCHENG – Chief Engineer CHMC – Chaplain of the United States Marine Corps CIC – Combat Information CenterCICO – Combat Information Center OfficerCIS – CASREP Information SystemCIVLANT – "Civilian Life" as defined by Atlantic Fleet personnelCIVPAC – "Civilian Life" as defined by Pacific Fleet personnelCIWS – Close-In Weapon SystemCM – Construction MechanicCMC – Commandant of the Marine Corps or Chaplain of the Marine Corps or Command Master ChiefCMDCM – Command Master ChiefCMDCS – Command Senior ChiefCMS-ID – Career Management System-Interactive DetailingCN – ConstructionmanCNATRA – Chief of Naval Air TrainingCNAVRES – Chief of Navy ReserveCNET – Command Naval Education and TrainingCNIC – Commander, Navy Installations CommandCNO – Chief of Naval OperationsCO – Commanding OfficerCOB – Chief of the Boat. Can also be used for "close of business".COD – Carrier Onboard DeliveryCOMCVW – Commander, Carrier Air WingCOMDESGRU – Commander, Destroyer GroupCOMDESRON – Commander, Destroyer SquadronCOMEX – Commence ExerciseCOMLANTFLT – Commander, U.S. Atlantic FleetCOMMO – Communications OfficerCOMNAVAIRES – Commander, Naval Air Force, ReserveCOMNAVAIRFOR – Commander, Naval Air ForcesCOMNAVAIRLANT – Commander, Naval Air Force AtlanticCOMNAVAIRPAC – Commander, Naval Air Force PacificCOMNAVRESFOR – Commander, Navy Reserve ForcesCOMNAVSEASYSCOM – Commander, Naval Sea Systems CommandCOMNAVSECGRU – Commander, Naval Security GroupCOMPACFLT – Commander, Pacific Fleet COMPATRECONGRU – Commander, Patrol and Reconnaissance GroupCOMPATRECONWING – Commander, Patrol and Reconnaissance WingCOMPTUEX – Composite Training Unit ExerciseCOMSEC – Communications SecurityCOMSUBFOR – Commander, Submarine ForcesCOMSUBLANT – Commander, Submarine Force AtlanticCOMSUBPAC – Commander, Submarine Force, U.S. Pacific FleetCOMTACGRU – Commander, Tactical Air Control GroupCOMTRAWING – Commander, Training Air WingCORTRAMID – Career Orientation and Training for MidshipmenCOS – Flag Officer's Chief of StaffCPO – Chief Petty OfficerCPOM – Chief Petty Officer's MessCR – Construction RecruitCRG – Coastal Riverine GroupCS – Culinary SpecialistCSADD – Coalition of Sailors Against Destructive DecisionsCSC – Combat Systems CoordinatorCSC – Command Senior ChiefCSC – Culinary Specialist Chief CSEC – Computerized Self Evaluation ChecklistCSMC – Combat Systems Maintenance CenterCSOOW – Combat Systems Officer of the WatchCSOSS – Combat Systems Operational Sequencing SystemsCT – Cryptologic TechnicianCTA – Cryptologic Technician, Administrative CTI – Cryptologic Technician, InterpretiveCTM – Cryptologic Technician, MaintenanceCTN – Cryptologic Technician, NetworksCTO – Cryptologic Technician, Communications CTR – Cryptologic Technician, CollectionCTT – Cryptologic Technician, TechnicalCV – Aircraft Carrier, class/type of shipCVA – Aircraft Carrier, Attack, class/type of shipCVAN – Aircraft Carrier, Attack, Nuclear, class/type of shipCVN – Aircraft Carrier, Nuclear, class/type of shipCVW – Carrier Air WingCWO – Chief Warrant Officer
D
• D1-R – 3M periodicity code or a shower DAPA – Drug and Alcohol Programs AdvisorDC – Damage ControlmanDC – Dental CorpsDCA – Damage Control AssistantDCAG – Deputy Air Wing Commander DCC – Damage Control CentralDCO – Damage Control Officer or Direct Commission OfficerDCPO – Damage Control Petty OfficerDD – DestroyerDDG – Guided Missile DestroyerDDR – Radar Picket DestroyerDE – Destroyer EscortDESDIV – Destroyer DivisionDESRON – Destroyer SquadronDEVGRU – Naval Special Warfare Development Group, formerly SEAL Team SIXDFM – Diesel Fuel Marine, standard Navy bunker fuelDILLIGAF – Does It Look Like I Give A Flip, standard Navy slangDIRNSA – Director of the National Security AgencyDL – Destroyer Leader DLG – Guided Missile Destroyer Leader DLGN – Nuclear-powered Guided Missile Destroyer Leader DM – Destroyer Minelayer DM – Illustrator DraftsmanDMHRSi – Defense Medical Human Resources System – internetDOD – Department of DefenseDoN – Department of the NavyDRB – Discipline Review BoardDRRS-N – Defense Readiness Reporting System – NavyDS – Data Systems TechnicianDSG – Defense Strategic GuidanceDVS – Department of Veterans Services, usually administered by each stateE
EAOS – End of Active Obligated ServiceEAWS – Enlisted Aviation Warfare SpecialistECRC – Expeditionary Combat Readiness CenterEDMC – Engineering Department Master Chief EDO – Engineering Duty OfficerEEBD – Emergency Escape Breathing DeviceEIDWS – Enlisted Information Dominance Warfare SpecialistEISM-Electronic Information Security ManagerELECTRO - Electrical OfficerEM – Electrician's MateEM – Emergency ManagementEMCON – Emissions ControlEMI – Extra Military InstructionEMN – Electrician's Mate, Nuclear FieldEMO – Electronics Material OfficerEN – EnginemanENS – EnsignEO – Equipment OperatorEOD – Explosive Ordnance DisposalEOOW – Engineering Officer of the WatchEOS – Enclosed Operating SpaceEOSS – Engineering Operational Sequencing SystemsERS – Engineroom SupervisorESWS – Enlisted Surface Warfare SpecialistET – Electronics TechnicianETN – Electronics Technician, Nuclear FieldEW – Electronic Warfare- EWO – Electronic Warfare OfficerEWS – Engineering Watch SupervisorEXW – Expeditionary Warfare
F
F/MC – Fleet Master ChiefFA – Fireman ApprenticeFAC – Forward Air Controller- FAC – Fast attack craftFAC/A – Forward Air Controller/AirborneFBM – Fleet Ballistic MissileFC – Fire ControlmanFCDSSA - Fleet Combat Direction Systems Support ActivityFCF – Functional Check FlightFCPCP – Fleet Computer Programming Center of the PacificFCPOM – First Class Petty Officer's MessFDO – Flight Deck OfficerFF – Frigate, class/type of shipFFG – Frigate, Guided Missile, class/type of ship
- FIAC – Fast Inshore Attack CraftFICEURLANT – Fleet Intelligence Center Europe & AtlanticFIGMO – F IT, Got My Orders
- FIS – Fire Inhibit SwitchFLEACT – Fleet ActivityFLTMPS – Fleet Training Management and Planning SystemFMF – Fleet Marine ForceFMSS – Field Medical Service SchoolFN – Fireman
- FNAEB – Field Naval Aviator Evaluation BoardFNMOC – Fleet Numerical Meteorology and Oceanography CenterFOD – Foreign Object Damage
- FPCON – Force Protection ConditionFR – Fireman RecruitFRC – Fleet Readiness CenterFRS – Fleet Replacement Squadron FSA – Food Service AttendantFSO – Food Service OfficerFT – Fire control technicianFTB – Fire Control Technician Ballistic MissileFTM – Fire Control Technician MissilesFTN – Forget the Navy FTN – Full-time Navy FTS – Full-time Support FWD - Forward
G
GCCS-M – Global Command and Control System-MaritimeGM – Gunner's MateGMG – Gunner's Mate GunsGMM – Gunner's Mate MissilesGMT – Gunner's Mate TechnicianGQ – General Quarters GS – Guided MissilemanGSA – General Services AdministrationGSE- Gas Turbine Systems Technician – ElectricalGSM- Gas Turbine Systems Technician – MechanicH
HA – Hospital ApprenticeHAC – Helicopter Aircraft CommanderHEDSUPPACTLANT – Headquarters, Support Activity AtlanticHELO – HelicopterHM – Hospital CorpsmanHMFIC – Head Mother Fucker In Charge HN – HospitalmanHR – Hospital RecruitHS – Helicopter Squadron, Anti-Submarine Warfare HT – Hull Maintenance TechnicianI
IAMM – Individual Augmentation Manpower ManagementIAP – In Assignment ProcessingIAW – In Accordance WithIC – Interior Communications ElectricianICO – In Case Of IFS – Introductory Flight ScreeningIHO – Industrial Hygiene OfficerIMF – Intermediate Maintenance FacilityIMRL – Individual Material Readiness ListINCOM– IncomingIOIC - Integrated Operational Intelligence CenterIP – Irish Pennant – A loose thread of a Naval or Marine uniform.IRT – In Reference ToIT – Information System TechnicianITS – Information Technology SubmarinesJ
JAG – Judge Advocate General's Corps, U.S. NavyJBD – Jet Blast Deflector JHSV – Joint High Speed VesselJO – Journalist, Junior Officer- JOPA – Junior Officer Protection Association
- JP-5 – Jet Propellant no. 5, standard Navy jet fuel JTF – Joint Task ForceJTFEX – Joint Task Force Exercise
K
KISS – Keep It Simple, StupidL
LANTCOM – Atlantic CommandLAWS – Laser Weapon SystemLCAC – Landing Craft, Air Cushion.LCC – Amphibious Command Ship.LCDR – Lieutenant CommanderLCPO – Leading Chief Petty OfficerLCM – Landing Craft, Mechanized, class/type of boat. Usage: LCM-4, LCM-6, LCM-8LCPL – Landing Craft, Personnel Launch, class/type of boat.LCS – Littoral Combat Ship, class/type of ship.LCVP – Landing Craft, Vehicle, Personnel, class/type of boat.LDO – Limited Duty OfficerLES – Leave and Earnings StatementLHA – Landing, Helicopter, Assault, class/type of ship.LHD – Landing, Helicopter, Dock, class/type of ship.LKA – Landing, Cargo, Attack, class/type of ship.LOSCA - Lube Oil Service Conditioning AssemblyLOCA - Loss Of Coolant AccidentLPD – Landing, Personnel, Dock, class/type of ship.LPA – Landing, Personnel, Attack, class/type of ship.LPH – Landing, Personnel, Helicopter, class/type of ship.LPO – Leading Petty OfficerLPOD – Last Plane On DeckLRAD – Long Range Acoustic DeviceLS – Logistics SpecialistLSD – Landing Ship, Dock, class/type of ship.LSO – Landing Signal OfficerLST – Landing Ship, Tank, class/type of ship.LT – LieutenantLTJG – Lieutenant Junior GradeM
MAA – Master-at-ArmsMALS – Marine Aviation Logistics SquadronMC – Mass Communication SpecialistMCO – Material Control OfficerMCPO – Master Chief Petty OfficerMCPON – Master Chief Petty Officer of the Navy MIDN – MidshipmanMIDRATS – Midnight Rations- MLCPO – Machinery Division Leading Chief Petty Officer MM – Machinist's MateMMCO – Maintenance/Material Control OfficerMMCPO – Maintenance Master Chief Petty OfficerMMN – Machinist's Mate, Nuclear FieldMO – Maintenance Officer MOA – Memorandum of AgreementMOU – Memorandum of UnderstandingMPA – Main Propulsion AssistantMPA – Military Patrol Craft MR – Machinery RepairmanMRDB – Material Readiness DatabaseMRG - Main Reduction GearMSG – MessageMSW – Main Seawater SystemMT – Missile TechnicianMTS – Master Training SpecialistMU – Musician
N
NAB – Naval Amphibious BaseNAF – Naval Air FacilityNALCOMIS – Naval Aviation Logistics Command Management Information SystemNAMI – Naval Aerospace Medicine InstituteNAS – Naval Air StationNAS JRB – Naval Air Station / Joint Reserve BaseNATOPS – Naval Air Training and Operational Procedure StandardizationNAVAIR – Naval Air Systems CommandNAVCOMP – Comptroller of the NavyNAVEDTRA – Chief of Navy Education and TrainingNAVFAC – Naval Facilities Engineering CommandNAVFLIGHTDEMRON – Navy Flight Demonstration Squadron NAVMAT – Naval Material CommandNAVMILPERSCOM – Navy Military Personnel CommandNAVSEA – Naval Sea Systems CommandNAVSECGRUACT – Naval Security Group ActivityNAVSTA – Naval StationNAVSUBASE – Naval Submarine BaseNAVSUP – Naval Supply Systems CommandNAVTRA – Chief of Naval TrainingNAWCAD – Naval Air Warfare Center, Aircraft DivisionNAWCWD – Naval Air Warfare Center, Weapons Division NBSD – Naval Base San DiegoNC – Navy CounselorNCDU – Navy Combat Demolition UnitNCF – Naval Construction Force NCIS – Naval Criminal Investigative ServiceNCM – Navy Commendation MedalNCTAMS – Naval Computer and Telecommunications Area Master StationNCTS – Naval Computer Telecommunications StationNECC – Navy Expeditionary Combat CommandNeL – Navy eLearningNEX – Navy ExchangeNFAAS – Navy Family Accountability and Assessment SystemNFO – Naval Flight OfficerNFO – Normal Fuel OilNIWC – Naval Information Warfare Center NJROTC – Navy Junior Reserve Officers' Training CorpsNKO – Navy Knowledge OnlineNMCB – Naval Mobile Construction Battalion SeabeesNMCI – Navy/Marine Corps IntranetNMPS – Navy Mobilization and Processing SiteNMTI – Navy Military Training InstructorNNPTU – Naval Nuclear Power Training UnitNNSY – Norfolk Naval ShipyardNOSC – Navy Operational Support Center NOSR – Network On-Site RepresentativeNPC – Navy Personnel CommandNROTC – Navy Reserve Officer Training CorpsNS – Naval StationNSAWC – Naval Strike and Air Warfare CenterNSFO – Navy Special Fuel OilNSGA – Naval Security Group ActivityNSIPS – Navy Standard Integrated Personnel SystemNSWC – Naval Surface Warfare CenterNSWG – Naval Special Warfare GroupNSY – Naval ShipyardNTC – Naval Training CenterNUWC – Naval Undersea Warfare CenterNWTD – Non Watertight DoorNWU – Navy Working UniformO
OAE – Old Antarctic ExplorerOBA – Oxygen Breathing ApparatusOBE - Overcome By EventsOCS – Officer Candidate School, located at Naval Station NewportOFS – Out Freaking Standing OIC – Officer in ChargeOM – On the MoveOMMS-NG - Organizational Maintenance Management System - Next GenerationOMPF – Official Military Personnel FileONR – Office of Naval ResearchOOC – Out of Calibration or Out of ComplianceOOD – Officer of the DeckOOMA – Optimized Organizational Maintenance ActivityOPCON – Operational controlOPNAV – Office of the Chief of Naval OperationsOPS-O – Operations OfficerOSA – Overseas Contingency Operation Support AssignmentsOTSR – Optimal Track Ship RoutingP
PACOM – Pacific CommandPAPERCLIP – People Against People Ever Reenlisting Civilian Life Is PreferredPAX – PassengersPCO – Prospective Commanding OfficerPCS – Permanent Change of StationPDHA – Post-Deployment Health AssessmentPDHRA – Post-Deployment Health Re-AssessmentPFA – Physical Fitness AssessmentPHA – Physical Health AssessmentPHRA – Physical Health Re-AssessmentPLD – Permanent Limited DutyPIR – Pass in Review- PMS – Planned Maintenance SystemPO – Petty Officer POC – Point of ContactPOD – Plan of the DayPOM – Plan of the MonthPOM - Prior to Overseas MovementPOOW – Petty Officer of the WatchPOTUS – President of the United StatesPOW – Plan of the WeekPOW – Prisoner of WarPRD – Projected Rotation DatePRIFLY – Primary Flight Control PRT – Physical Readiness TestPSNS and IMF – Puget Sound Naval Shipyard and Intermediate Maintenance FacilityPT – Physical TrainingPTS – Perform to ServePWD – Public Works DepartmentPXO – Prospective Executive Officer
Q
QAWTD/QAWTH – Quick Acting Water Tight Door/Quick Acting Water Tight HatchQM – QuartermasterQMOW – Quartermaster of the WatchR
RADCON – Radiation ControlRADM – Rear Admiral (United States) RADM – Relational Administrative Data ManagementRAG – Replacement Air Group, now known as Fleet Replacement Squadron RCA – Reactor Controls AssistantRDBM – Red Data-Base ManagerRDC – Recruit Division CommanderRDML – Rear Admiral (United States) REPO – Repair Division OfficerRHIB '' – Rigid Hull Inflatable BoatRIMPAC – Rim of the PacificRIO – Radar Intercept Officer RL – Restricted Line OfficerRM – RadiomanRMD – Restricted Maneuvering DoctrineROC – Readiness Operations CenterROC/POE - Required Operational Capabilities / Projected Operating EnvironmentRPM – Remedial Project ManagerRP – Religious Program SpecialistRPOC – Recruit Petty Officer in Charge or Recruit Chief Petty OfficerROM – Restriction of movement RT – Radiotelephone RTC – Recruit Training CommandRTD – Return to DutyS
S2F – Speed to FleetSA – Seaman ApprenticeSAG – Surface Action GroupSAM – Surface-to-Air MissileSAPR – Sexual Assault Prevention and ResponseSAR - Search And RescueSARC – Special Amphibious Reconnaissance CorpsmanSAU – Search and Attack UnitSCAT – Small Craft Attack TeamSCBA – Self-Contained Breathing ApparatusSCPO – Senior Chief Petty OfficerSCRAM – Safety Control Rod Axe Man. Reactor emergency shutdown SCW – Seabee Combat Warfare Specialist insigniaSE – Support EquipmentSES – Surface Effect Ship, class/type of shipSEL – Senior Enlisted Leader SEALs – United States Navy SEALs, officially termed Special Warfare Operators SEAOPDET – Sea Operational DetachmentSECDEF – Secretary of Defense (United States)SECNAV – Secretary of the Navy (United States)SFC - Static Frequency ConverterSICLOS – Shift Inspect Clean Lube Oil StrainersSitrep – Situation reportSLBM – Submarine-Launched Ballistic MissileSN – SeamanSNA – Student Naval AviatorSO – Special Warfare Operator, aka US Navy SEAL.SOFA – Status of Forces AgreementSONAR – Sound Navigation And RangingSOP – Senior Officer Present SOPA – Senior Officer Present AfloatSOQ – Sailor of the QuarterSOY – Sailor of the YearSPAWAR – Space and Naval Warfare Systems CommandSPAWARSYSCEN – Space and Naval Warfare Systems CenterSR – Seaman RecruitSRB – Selective Reenlistment BonusSRW – Shutdown Roving WatchSS – Submarine SpecialistSS – Submarine, class/type of shipSSBN – Hull classification symbol for ballistic missile submarine SSES – Ships Signals Exploitation Space: compartment on a ship where embarked NAVSECGRU personnel, known a Cryptologic Technicians, do their workSSGN – Hull classification symbol for cruise missile submarine SSMG – Ships Service Motor Generator; engine room equipment used to convert electric current from AC to DC or DC to ACSSN – Hull classification symbol for general-purpose fast attack submarines SSOQ – Senior Sailor of the QuarterSSOY – Senior Sailor of the YearSSTG – Ships Service Turbine GeneratorSTA-21 - Seaman To Admiral 2021STG – Sonar Technician SurfaceSTREAM – Standard Tension Replenishment Alongside MethodSTS – Sonar Technician SubmarinesSUBRON – Submarine SquadronSUBSAFE – Submarine Safety ProgramSUPPO – Supply OfficerSWCC – Special Warfare Combatant-craft Crewmen, the Special Operations Forces who operate and maintain an inventory of boats used to conduct special operations missions or to support special operations missions conducted in maritime environments, particularly those of the U.S. Navy SEALs.SWO – Surface Warfare OfficerT
TAD – Temporary Additional Duty, equivalent to Army's TDYTADCEN – Training and Distribution CenterTAO – Tactical action officer TAR – Training and Administration of the Reserve TE – Task elementTF – Task forceTFO – Temporary flight orders. Non-aircrew personnel that have passed the minimum requirements to act as part of the aircrew for some purpose, e.g. secondary door gunner.TFOA – Things falling off aircraftTG – Task groupTLD – Temporary limited dutyTM – Torpedoman's mateTOPGUN – United States Navy Fighter Weapons SchoolTSP – Troubled systems processTU – Task unitTYCOM – Type commandersU
UA – Unauthorized AbsenceUA – UrinalysisUAS – Unmanned Aerial SystemUAV – Unmanned Aerial VehicleUCMJ – Uniform Code of Military Justice- UCT – Underwater Construction TeamUDT – Underwater Demolition TeamUNODIR – Unless Otherwise DirectedUNREP – Underway ReplenishmentUNSAT – UnsatisfactoryUOD – Uniform of the dayURL – Unrestricted Line OfficerUSCG – United States Coast GuardUSMC – United States Marine Corps, organized under the United States Department of the NavyUSN – United States NavyUSNA – United States Naval Academy USNR – United States Naval ReserveUSS – United States ShipUT - UtilitiesmanUWT – Underwater Telephone