U.S. Navy Enlisted Ratings Designation Title ABCM Master Chief Aviation Boatswain's Mate (E-9 only) ABE Aviation Boatswain's Mate Launch & Recovery Equipment ABF Aviation Boatswain's Mate Fuels ABH Aviation Boatswain's Mate Aircraft Handling ABM Aviation Boatswain's Mate (1944-1948) ABU Aviation Boatswain's Mate Utility AC Air Controlman (1948-1977) AC Air Traffic Controller (1977- ) ACM Aviation Carpenter's Mate (1921-1940) (to AM) ACT Aircontrolman Tower ACW Aircontrolman Early Warning AD Aviation Machinist's Mate (1948- ) ADE Aviation Machinist's Mate Engine Mechanic ADF Aviation Machinist's Mate Flight Engineer ADG Aviation Machinist's Mate Carburetor Mechanic ADJ Aviation Machinist's Mate Jet Engine Mechanic ADP Aviation Machinist's Mate Propeller Mechanic ADR Aviation Machinist's Mate Reciprocating Engine Mechanic AE Aviation Electrician's Mate (1948- ) AEM Aviation Electrician's Mate (1942-1948) AETM Aviation Electronic Technician's Mate (1945-1948) AF Photographer's Mate (1948-1950) (to PH) AFCM Master Chief Aircraft Maintenanceman (E-9 only) (1963- ) Aerog Aerographer (1923-1942) AerM Aerographer's Mate (1942-1948) AG Aerographer's Mate (1948- ) AK Aviation Storekeeper (1948-2003) (to SK) AL Aviation Electronicsman (1948-1959) (to AT) AM Aviation Metalsmith (1921-1948) AM Aviation Structural Mechanic (E-8 only) AME Aviation Structural Mechanic Safety Equipment AMH Aviation Structural Mechanic Hydraulic Mechanic (1948-2001)(to AM) AMM Aviation Machinist's Mate (1921-1948) (to AD) AMMC Aviation Machinist's Mate Carburetor Mechanic AMMF Aviation Machinist's Mate Flight Engineer AMMH Aviation Machinist's Mate Hydraulic Mechanic AMMI Aviation Machinist's Mate Instrument Mechanic AMMP Aviation Machinist's Mate Propeller Mechanic AMMT Aviation Machinist's Mate Gas Turbine Mechanic AMS Aviation Structural Mechanic Structures (1948-2001)(to AM) AO Aviation Ordnanceman (1948- ) AOMB Aviation Bombsight Mechanic (1943-1944) U.S. Navy Enlisted Ratings AOF Ordnanceman Fire Control AOM Aviation Ordnanceman (1921-1948) AOMB Aviation Bombsight and Fire Control Mechanic (1944- ) AOMT Aviation Ordnanceman Turrets AOT Aviation Ordnanceman Turrets AOU Aviation Ordnanceman Utility AP Aviation Pilot (1924-1933) (1942-1948) AP First Class Aviation Pilot (1927-1933) APA Aviation Pilot Airship AR Quartermaster (Aviation) (1917-1921) APH Aviation Photographers Mate (1948-52) AQ Aviation Fire Control Technician (1954-1991) (to AT) AQB Aviation Fire Control Technician Bomb Director AQF Aviation Fire Control Technician Fire Contro AR Aviation Rigger (1921-1927) AR Airship Rigger (1943-1948) (to AM) ARM Aviation Radioman (1942-1948) (to AL) AS Support Equipment Technician (1966- ) ASE Aviation Support Equipment Technician Electrical ASH Aviation Support Equipment Technician Hydraulics and Structure ASM Aviation Support Equipment Technician Mechanical ART Aviation Radio Technician (1942-1945) AT Aviation Electronics Technician (1948- ) ATA Aviation Electronics Technician Aircraft Equipment ATG Aviation Electronics Technician Ground Equipment ATN Aviation Electronics Technician Radio & Radio Navigation Equipment ATO Aviation Electronics Technician Ordnance ATR Aviation Electronics Technician Radar and Radar Navigation Equipment ATW Aviation Electronics Technician Airborne CIC Equipment AVCM Master Chief Avionics Technician (E-9 only) AW Aviation Antisubmarine Warfare Operator (1968-1993) AW Aviation Warfare Systems Operator (1993 -2008) AW Master Chief Naval Aircrewman (2008- ) (E-9 only) AWF Naval Aircrewman Mechanical AWO Naval Aircrewman Operator AWR Naval Aircrewman Tactical Helicopter AWS Naval Aircrewman Helicopter AWV Naval Aircrewman Avionics AX Aviation Antisubmarine Warfare Technician (1962-1991) (to AT) AZ Aviation Maintenance Administrationman (1964- ) B Boilermaker BM Boatswain's Mate (1893- ) BMA Boatswain's Mate Master-at-Arms BMB Boatswain's Mate Seabee BMG Boatswain's Mate Shipboard U.S. Navy Enlisted Ratings BMK Boatswain's Mate Canvasman BMR Boatswain's Mate Rigger BMS Boatswain's Mate Stevedore BMSTR Bandmaster BR Boilermaker (1956-1971) BT Boilerman (to WT Watertender) BT Boiler Tender BT Boiler Technician (1976-1996) (to MM) BTG Shipboard Boilerman BTR Boiler Repairman BU Builder (1948- ) BUG Bugler (1871-1948) BUGMSTR Buglemaster (1927-1948) BUH Builder Heavy BUL Builder Light BUR Builder Concrete CAP Chief Aviation Pilot (1924-1933) CE Construction Electrician's Mate (1948-1958) CE Construction Electrician (1958- ) CEG Construction Electrician General CEL Construction Electrician Communications Lineman CEP Construction Electrician Power Lineman CES Construction Electrician Shop CET Construction Electrician Telephone CEW Construction Electrician Wiring CM Carpenter's Mate (1885-1948) (to DC) CM Construction Mechanic (1958- ) CMA Carpenter's Mate Aviation CMA Construction Mechanic Automotive CMC Command Master Chief (E-9 only) CMCBB Carpenter's Mate Construction Battalion Builder CMCBD Carpenter's Mate Construction Battalion Draftsman CMCBE Carpenter's Mate Construction Battalion Excavation Foreman CMCBS Carpenter's Mate Construction Battalion Surveyor CMD Construction Mechanic Diesel Engine CMDCM Command Master Chief Petty Officer CMG Construction Mechanic Gasoline Engine CMH Construction Mechanic Construction CMPx Mate Painter CMPx Carpenter's Mate Patternmaker CMPx Carpenter's Mate Plumber Fitter CMSRB Carpenter's Mate Ship Repair Boatbuilders Wood CMSRC Carpenter's Mate Ship Repair Carpenters CMSRJ Carpenter's Mate Ship Repair Joiners U.S. Navy Enlisted Ratings CMSRK Carpenter's Mate Ship Repair Caulkers Boats CMSRN Carpenter's Mate Ship Repair Cement Workers CMSRS Carpenter's Mate Ship Repair Shipwrights CNOCM CNO Directed Command Master Chief CS Commissary Steward (1902-1948) CS Commissaryman (1948-1974) (to MS) CS Culinary Specialist (2004- ) CSB Commissaryman Butcher CSG Commissaryman Ship's Cooks CSR Commissaryman Bakers CSS Culinary Specialist Submarine (2017- ) CT Communication Technician (1948-1976) CT Cryptologic Technician (1976- ) CTA Communications Technician Administration (1948-1976) CTA Cryptologic Technician Administration (1976-2008) (to YN) CTI Communications Technician Interpretive (1948-1976) CTI Cryptologic Technician Interpretive (1976- ) CTM Communications Technician Maintenance (1948-1976) CTM Cryptologic Technician Maintenance (1976- ) CTN Cryptologic Technician Networks (2004- ) CTO Communications Technician Communications (1948-1976) CTO Cryptologic Technician Communications (1976-2006) (to IT) CTR Communications Technician Collection (1948-1976) CTR Cryptologic Technician Collection (1976- ) CTS Communications Technician Special Devices Operator (1948-?) CTT Communications Technician Technical (1948-1976) CTT Cryptologic Technician Technical (1976- ) CTY Communications Technician Clerk (1948-1976) (to CTA) CU Constructionman (E-8, E-9 only) (from BUC, EAC, SWC) CYN Communications Yeoman (1964-c1974) (E-4 only) DC Damage Controlman (1948-1972) (to HT) (19??- ) DCG Damage Controlman Shipboard DCP Damage Controlman Painter DCW Damage Controlman Carpenter DK Disbursing Clerk (1948-2005) (to PS) DM Illustrator Draftsman (1961-2006) (to MC) DME Draftsman Electrical DMI Draftsman Illustrator DML Draftsman Lithographic DMM Draftsman Mechanical DMS Draftsman Structural DMT Draftsman Topographic DP Data Processing Technician (1967-1998) (to RM) DS Data Systems Technician (1961-1998) (to ET or FC) U.S. Navy Enlisted Ratings DT Dental Technician (1948-2005) (to HM) DTG Dental Technician General DTP Dental Technician Prosthetic DTR Dental Technician Repair EA Engineering Aide (1961- ) EAD Engineering Aids Draftsman EAS Engineering Aids Surveyor EM Electrician Mate (1921- ) EMCBC Electrician's Mate Construction Battalion Communication EMCBD Electrician's Mate Construction Battalion Draftsman EMCBG Electrician's Mate Construction Battalion General EMCBL Electrician's Mate Construction Battalion Line and Station EMN Electricians Mate, Nuclear Power EMP Electrician's Mate Power and Light EMS Electrician's Mate Shop EMSRG Electrician's Mate Ship Repair General Electrician EMSRS Electrician's Mate Ship Repair Shop Electrician EMSRT Electrician's Mate Ship Repair Interior Communications Repairman EN Engineman (1948- ) ENA Engineman Aviation END Engineman Diesel ENG Engineman Gasoline EO Equipment Operator (1958- ) EOD Explosive Ordnance Disposal Technician (2006- ) EOH Equipment Operator Hauling EON Equipment Operator Construction Equipment EQCM Master Chief Equipmentman (E-9 only) ET Electronics Technician (1948- ) ETN Electronics Technician Communications ETN Electronics Technician Navigation (Ballistic Missile Submarine (to 1980) ETN Electronics Technician Nuclear Power ETR Electronics Technician Submarine Communications ETR Electronics Technician Radar ETS Electronics Technician Sonar ETV Electronics Technician Submarine Navigation EW Electronic Warfare Technician (1971-2003) (to CTT) FC Fire Controlman (1921-1955) FC Fire Controlman Surface (1985 - ) FCA Fire Controlman Aegis (2017- ) FCO Fire Controlman Operator FCR Fire Controlman Range Finder FCS Fire Controlman Surface (to 1948) FCS Fire Controlman Submarine (from 1948) U.S. Navy Enlisted Ratings FCU Fire Controlman Underwater Weapons FLTCM Fleet Master Chief Petty Officer FORCM Force Master Chief Petty Officer FP Pipefitter (1948-1958) (to SF) FPB Pipefitter Coppersmith FPG Pipefitter Shipboard FPP Pipefitter Plumber FPS Pipefitter Steamfitter FT Fire Control Technician (1955-1985) (split to FC FT) FT Fire Control Technician Submarine (1985- ) FTA