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Mission Occupational Specialties Explained

In the Marine Corps, each and every individual that claims the title is a rifleman first.

 

100’s:  Personnel and Administration

  • 0111 Administrative Specialist
  • 0147 Equal Opportunity Advisor (EOA)
  • 0149 Substance Abuse Control Specialist
  • 0161 Postal Clerk
  • 0171 Manpower Information Systems (MIS) Analyst

 

200’s:  Intelligence

  • 0211 Counterintelligence/Human Intelligence (CI/HUMINT) Specialist
  • 0212 Technical Surveillance Countermeasures (TSCM) Specialist
  • 0231 Intelligence Specialist
  • 0241 Imagery Analysis Specialist
  • 0261 Geographic Intelligence Specialist
  • 0291 Intelligence Chief

 

300’s:  Infantry

  • 0311 Rifleman
  • 0312 Riverine Assault Craft (RAC) Marine
  • 0313 Light Armor Vehicle Marine
  • 0314 Rigid Raiding Craft (RRC)/Rigid Hull Inflatable Boat (RHIB) Coxswain
  • 0316 Combat Rubber Reconnaissance Craft (CRRC) Coxswain
  • 0317 Scout Sniper
  • 0321 Reconnaissance Marine
  • 0323 Reconnaissance Marine, Parachute Qualified
  • 0324 Reconnaissance Marine, Combatant Diver Qualified
  • 0326 Reconnaissance Marine, Parachute and Combatant Diver Qualified
  • 0331 Machine Gunner
  • 0341 Mortarman
  • 0351 Infantry Assault Marine
  • 0352 Antitank Missile Gunner
  • 0365 Infantry Squad Leader
  • 0369 Infantry Unit Leader
  • 0372 Critical Skills Operator (CSO)

 

400’s:  Logistics

  • 0411 Maintenance Management Specialist
  • 0431 Logistics/Embarkation Specialist
  • 0451 Airborne and Air Delivery Specialist
  • 0471 Personnel Retrieval and Processing Specialist
  • 0472 Personnel Retrieval and Processing Technician
  • 0477 Expeditionary Logistics Instructor (ELI)
  • 0481 Landing Support Specialist
  • 0491 Logistics/Mobility Chief

 

500’s:  MAGTF (Planning)

  • 511 MAGTF Planning Specialist
  • 0521 Military Information Support Operations (MISO) Noncommissioned Officer
  • 0531 Civil Affairs Noncommissioned Officer
  • 0551 Information Operations Specialist
  • 0571 Foreign Security Forces Advisor

 

600’s:  Communications

  • 0612 Tactical Switching Operator
  • 0613 Construction Wireman
  • 0619 Telecommunications Systems Chief
  • 0621 Field Radio Operator
  • 0622 Digital Multi-channel Wideband Transmission Equipment Operator
  • 0623 Tropospheric Scatter Radio Multi-channel Equipment Operator
  • 0627 Satellite Communications Operator
  • 0629 Radio Chief
  • 0648 Spectrum Manager
  • 0651 Data Network Specialist (Garrison)
  • 0652 Certification Authority Workstation (CAW) Operator
  • 0653 Defense Message System (DMS) Specialist
  • 0656 Tactical Data Network Specialist (Field)
  • 0659 Cyber Network Systems Chief
  • 0681 Information Security Technician
  • 0689 Cyber Security Technician
  • 0699 Communications Chief

 

800’s:  Field Artillery

  • 0811 Field Artillery Cannoneer
  • 0814 High Mobility Artillery Rocket System (HIMARS) Operator
  • 0842 Field Artillery Radar Operator
  • 0844 Field Artillery FDC (Fire Direction Control) Marine
  • 0847 Field Artillery Sensor Support Marine
  • 0848 Field Artillery FDC Operations Chief
  • 0861 Field Artillery Scout Observer Marine

 

900’s:  Training

  • 0911 Marine Corps Drill Instructor
  • 0913 Marine Combat Instructor
  • 0916 Martial Arts Instructor
  • 0917 Martial Arts Instructor-Trainer
  • 0919 Force Fitness Instructor
  • 0918 Water Safety/Survival Instructor
  • 0931 Marksmanship Instructor
  • 0932 Small Arms Weapons Instructor
  • 0933 Marksmanship Coach

1100’s:  Utilities

  • 1141 Electrician
  • 1142 Electrical Equipment Repair Specialist
  • 1161 Refrigeration Mechanic
  • 1169 Utilities Chief
  • 1171 Water Support Technician

 

1300’s:  Engineering, Construction, Facilities, and Equipment

  • 1316 Metal Worker
  • 1333 Operator while impaired
  • 1341 Engineer Equipment Mechanic
  • 1342 Small Craft Mechanic
  • 1343 Assault Breacher Vehicle Mechanic
  • 1345 Engineer Equipment Operator
  • 1349 Engineer Equipment Chief
  • 1361 Engineer Assistant
  • 1371 Combat Engineer
  • 1372 Assault Breacher Vehicle Operator
  • 1391 Bulk Fuel Specialist

 

1800’s:  Tank and Assault Amphibious Vehicles

  • 1812 Armor Marine
  • 1833 Assault Amphibious Vehicle (AAV) Marine
  • 1834 ACV Marine

 

2100’s:  Ground and Ordnance Maintenance

  • 2111 Small Arms Repairer/Technician
  • 2112 Precision Weapons Repairer
  • 2131 Towed Artillery Systems Technician
  • 2141 Assault Amphibious Vehicle (AAV) Repairer/Technician
  • 2146 Main battle tank (MBT) Repairer/Technician
  • 2147 Light Armored Vehicle (LAV) Repairer/Technician
  • 2148 Expeditionary Fighting Vehicle (EFV) Repairer/Technician
  • 2149 Ordnance Vehicle Maintenance Chief
  • 2161 Machinist
  • 2171 Electro-Optical Ordnance Repairer/Technician
  • 2181 Senior Ground Ordnance Weapons Chief

2300’s:  Ammunition and Explosive Ordnance Disposal

 

2600’s:  Signals Intelligence/Ground Electronic Warfare

  • 2611 Cryptologic Digital Network Operator/Analyst
  • 2621 Special Communications Signals Collection Operator/Analyst
  • 2629 Signals Intelligence Analyst
  • 2631 Electronic Intelligence (ELINT) Intercept Operator/Analyst
  • 2649 Cryptanalyst
  • 2651 Special Intelligence System Administrator/Communicator
  • 2671 Middle East Cryptologic Linguist
  • 2673 Asia-Pacific Cryptologic Linguist
  • 2674 European I (West) Cryptologic Linguist
  • 2676 European II (East) Cryptologic Linguist
  • 2691 Signals Intelligence/Electronic Warfare (SIGINT/EW) Chief

 

2700’s:  Linguist

Middle East

  • 2711 Pakistani Pashtu
  • 2712 Arabic (Modern Standard)
  • 2713 Arabic (Egyptian)
  • 2714 Arabic (Syrian)
  • 2716 Amharic
  • 2717 Bengali
  • 2718 Hebrew
  • 2719 Hindi
  • 2721 Kurdish
  • 2722 Persian
  • 2723 Somali
  • 2724 Swahili
  • 2726 Turkish
  • 2727 Urdu

Asia-Pacific

  • 2733 Burmese
  • 2734 Cambodian
  • 2736 Cantonese
  • 2737 Chinese (Mandarin)
  • 2738 Indonesian
  • 2741 Korean
  • 2746 Thai
  • 2747 Vietnamese

European I (West)

  • 2754 Dutch
  • 2756 Finnish
  • 2757 French
  • 2758 German
  • 2759 Greek
  • 2761 Haitian-Creole
  • 2762 Icelandic
  • 2763 Italian
  • 2764 Norwegian
  • 2766 Portuguese (BR)
  • 2767 Portuguese (EU)
  • 2768 Spanish
  • 2769 Swedish

European II (East)

  • 2776 Albanian
  • 2777 Armenian
  • 2778 Bulgarian
  • 2779 Czech
  • 2781 Estonian
  • 2782 Georgian
  • 2783 Hungarian
  • 2784 Latvian
  • 2786 Lithuanian
  • 2787 Macedonian
  • 2788 Polish
  • 2789 Romanian
  • 2791 Russian
  • 2792 Serb-Croat
  • 2793 Slovenian
  • 2794 Ukrainian

2800’s:  Data/Communications Maintenance

  • 2818 Teletype Repair
  • 2819 Teletype/Cryptologic Maintenance and Repair
  • 2821 Technical Controller Marine
  • 2822 Electronic Switching Equipment Technician
  • 2823 Technical Control Chief
  • 2826 AN/MSC-63A Maintenance Technician
  • 2827 Tactical Electronic Reconnaissance Process/Evaluation System (TERPES) Technician
  • 2831 Multichannel Equipment Repairer
  • 2832 Multichannel Equipment Technician (No longer assigned)
  • 2833 Fleet Satellite Terminal Technician
  • 2834 Satellite Communications (SATCOM) Technician
  • 2841 Ground Radio Repairman
  • 2844 Ground Communications Organizational Repairer
  • 2846 Ground Radio Intermediate Repairer
  • 2847 Telephone Systems/Personal Computer Intermediate Repairer
  • 2848 Tactical Remote Sensor System (TRSS) Maintainer
  • 2862 Electronics Maintenance Technician
  • 2871 Test Measurement and Diagnostic Equipment Technician
  • 2874 Metrology Technician
  • 2881 2M/ATE Technician
  • 2887 Artillery Electronics Technician
  • 2891 Electronics Maintenance

3000’s:  Supply Administration and Operations

  • 3043 Supply Administration and Operations Clerk
  • 3044 Contract Specialist
  • 3051 Warehouse Clerk
  • 3052 Packaging Specialist
  • 3072 Aviation Supply Clerk

3100’s:  Distribution Management

  • 3112 Distribution Management Specialist

 

3300’s:  Food Service

  • 3381 Food Service Specialist
  • 3372 Marine Aide-enlisted aide to General and Flag officers

 

3400’s:  Financial Management

  • 3432 Finance Technician – MGySgt–Pvt
  • 3441 Non-appropriated fund (NAF) Audit Technician – MGySgt–Sgt
  • 3451 Fiscal/Budget Technician – MGySgt–Pvt

 

3500’s:  Motor Transport

  • 3521 Automotive Organizational Technician
  • 3522 Automotive Intermediate Mechanic
  • 3523 Vehicle Recovery Mechanic
  • 3524 Fuel and Electrical Systems Mechanic
  • 3526 Crash/Fire/Rescue Vehicle Mechanic
  • 3529 Motor Transport Maintenance Chief
  • 3531 Motor Vehicle Operator
  • 3533 Logistics Vehicle System Operator
  • 3534 Semitrailer Re fueler Operator
  • 3536 Vehicle Recovery Operator
  • 3537 Motor Transport Operations Chief
  • 3538 Licensing Examiner

 

4100’s:  Morale, Welfare, and Recreation

  • 4133 Morale, Welfare, Recreation (MWR) Specialist

 

4300’s:  Public Affairs

  • 4212 Basic Military Journalism
  • 4313 Broadcast Journalist
  • 4341 Combat Correspondent

 

4400’s:  Legal Services

  • 4421 Legal Services Specialist
  • 4422 Legal Services Reporter (Voice Recognition)

 

4600’s:  Combat Camera

  • 4612 Production Specialist
  • 4616 Reproduction Equipment Repairman
  • 4641 Combat Photographer
  • 4671 Combat Videographer
  • 4691 Combat Camera Chief

 

4800’s:  Recruiting and Retention Specialist

  • 4821 Career Retention Specialist (PMOS)

 

5500’s:  Music

  • 5511 Member, The President’s Own, United States Marine Band (PMOS)
  • 5512 Member, The Commandant’s Own, United States Marine Drum and Bugle Corps (PMOS)
  • 5519 Enlisted Conductor
  • 5521 Drum Major
  • 5522 Small Ensemble Leader
  • 5523 Instrument Repair Technician
  • 5524 Musician
  • 55XX skill designators for 5524:
    • 5526 Oboe
    • 5528 Bassoon
    • 5534 Clarinet
    • 5536 Flute/Piccolo
    • 5537 Saxophone
    • 5541 Trumpet
    • 5543 Euphonium
    • 5544 Horn
    • 5546 Trombone
    • 5547 Tuba/Sousaphone
    • 5548 Electric Bass
    • 5563 Percussion (Drums, Timpani, and Mallets)
    • 5565 Piano
    • 5566 Guitar
  • 5567 Arranger, Band

The following apply only to the Drum and Bugle Corps:

  • 5571 Drum and Bugle Corps Drum Major
  • 5574 Soprano or Mellophone Bugle
  • 5576 French horn Bugle
  • 5577 Bass Baritone Bugle
  • 5579 Contrabass Bugle
  • 5592 Drum and Bugle Corps Arranger
  • 5593 Percussion

 

5700’s:  Chemical, Biological, Radiological, and Nuclear Defense (CBRN)

  • 5711 Chemical, Biological, Radiological, and Nuclear (CBRN) Defense Specialist

 

5800’s:  Military Police and Corrections

  • 5811 Military Police
  • 5812 Working Dog Handler
  • 5813 Accident Investigator
  • 5814 Physical Security Specialist
  • 5816 Special Reaction Team (SRT) Member
  • 5819 Military Police Investigator
  • 5821 Criminal Investigator CID Agent
  • 5822 Forensic Psycho-physiologist (Polygraph Examiner)
  • 5831 Correctional Specialist
  • 5832 Correctional Counselor

 

5900’s:  Electronics Maintenance

  • 5912 Avenger System Maintainer
  • 5939 Aviation Communication Systems Technician
  • 5942 Aviation Radar Technician
  • 5948 Aviation Radar Repairer
  • 5951 Aviation Meteorological Equipment Technician, OMA/IMA
  • 5952 Air Traffic Control Navigational Aids Technician
  • 5953 Air Traffic Control Radar Technician
  • 5954 Air Traffic Control Communications Technician
  • 5959 Air Traffic Control Systems Maintenance Chief
  • 5962 Tactical Data Systems Equipment (TDSE) Repairer
  • 5963 Tactical Air Operations Module Repairer (obs)
  • 5974 Tactical Data Systems Administrator (TDSA)
  • 5979 Tactical Air Operations Module/Air Defense Technician
  • 5993 Electronics Maintenance Chief

 

 

60/61/6200’s:  Aircraft Maintenance

  • 3215 Basic Aircraft Maintenance Marine
  • 6012 Aviation Maintenance Controller/Production Controller
  • 6018 Aviation Quality Assurance Representative (QAR) Inspector
  • 6019 Aircraft Maintenance Chief
  • 6023 Aircraft Power Plants Test Cell Operator
  • 6033 Aircraft Nondestructive Inspection Technician
  • 6042 Individual Material Readiness List (IMRL) Asset Manager
  • 6043 Aircraft Welder
  • 6046 Aircraft Maintenance Administration Specialist
  • 6048 Flight Equipment Technician
  • 6049 NALCOMIS Application Administrator/Analyst
  • 6061 Aircraft Intermediate Level Hydraulic/Pneumatic Mechanic-Trainee
  • 6062 Aircraft Intermediate Level Hydraulic/Pneumatic Mechanic
  • 6071 Aircraft Maintenance Support Equipment (SE) Mechanic-Trainee
  • 6072 Aircraft Maintenance Support Equipment (SE) Hydraulic/Pneumatic/Structures Mechanic
  • 6073 Aircraft Maintenance Support Equipment (SE) Electrician/Refrigeration Mechanic
  • 6074 Cryogenics Equipment Operator
  • 6091 Aircraft Intermediate Level Structures Mechanic-Trainee
  • 6092 Aircraft Intermediate Level Structures Mechanic
  • 6100 Helicopter/Tiltrotor Mechanic-Trainee
  • 6112 Helicopter Mechanic, CH-46
  • 6113 Helicopter Mechanic, CH-53
  • 6114 Helicopter Mechanic, UH/AH-1
  • 6116 Tiltrotor Mechanic, MV-22
  • 6122 Helicopter Power Plants Mechanic, T-58
  • 6123 Helicopter Power Plants Mechanic, T-64
  • 6124 Helicopter Power Plants Mechanic, T-400/T-700
  • 6132 Helicopter/Tiltrotor Dynamic Components Mechanic
  • 6151 Helicopter/Tiltrotor Airframe Mechanic-Trainee
  • 6152 Helicopter Airframe Mechanic, CH-46
  • 6153 Helicopter Airframe Mechanic, CH-53
  • 6154 Helicopter Airframe Mechanic, UH/AH-1
  • 6156 Tiltrotor Airframe Mechanic, MV-22
  • 6162 Presidential Support Specialist
  • 6172 Helicopter Crew Chief, CH-46
  • 6173 Helicopter Crew Chief, CH-53
  • 6174 Helicopter Crew Chief, UH-1N/Y
  • 6176 Tilt-rotor Crew Chief, MV-22
  • 6177 Weapons and Tactics Crew Chief Instructor
  • 6178 VH-60N Presidential Helicopter Crew Chief
  • 6179 VH-3D Presidential Helicopter Crew Chief
  • 6199 Enlisted Aircrew/Aerial Observer/Gunner
  • 6211 Fixed-wing Aircraft Mechanic-Trainee
  • 6212 Fixed-Wing Aircraft Mechanic, AV-8/TAV-8
  • 6213 Fixed-Wing Aircraft Mechanic, EA-6
  • 6214 Unmanned Aerial Vehicle (UAV) Mechanic
  • 6216 Fixed-Wing Aircraft Mechanic, KC-130
  • 6217 Fixed-Wing Aircraft Mechanic, F/A-18
  • 6222 Fixed-Wing Aircraft Power Plants Mechanic, F-402
  • 6223 Fixed-Wing Aircraft Power Plants Mechanic, J-52
  • 6226 Fixed-Wing Aircraft Power Plants Mechanic, T-56
  • 6227 Fixed-wing Aircraft Power Plants Mechanic, F-404
  • 6242 Fixed-Wing Aircraft Flight Engineer, KC-130
  • 6243 Fixed-Wing Transport Aircraft Specialist, C-9
  • 6244 Fixed-Wing Transport Aircraft Specialist, C-12
  • 6246 Fixed-Wing Transport Aircraft Specialist, C-20
  • 6247 Fixed-Wing Transport Aircraft Specialist, UC-35
  • 6251 Fixed-Wing Aircraft Airframe Mechanic-Trainee
  • 6252 Fixed-Wing Aircraft Airframe Mechanic, AV-8/TAV-8
  • 6253 Fixed-Wing Aircraft Airframe Mechanic, EA-6
  • 6256 Fixed-Wing Aircraft Airframe Mechanic, KC-130
  • 6257 Fixed-Wing Aircraft Airframe Mechanic, F/A-18
  • 6258 Fixed-Wing Aircraft Airframe Mechanic, F-35B
  • 6276 Fixed-Wing Aircraft Crew Chief, KC-130
  • 6281 Fixed-Wing Aircraft Safety Equipment Mechanic- Trainee
  • 6282 Fixed-Wing Aircraft Safety Equipment Mechanic, AV-8/TAV-8
  • 6283 Fixed-Wing Aircraft Safety Equipment Mechanic, EA-6
  • 6286 Fixed-Wing Aircraft Safety Equipment Mechanic, KC-130
  • 6287 Fixed-Wing Aircraft Safety Equipment Mechanic, F/A-18

 

63/6400’s:  Avionics

  • 6311 Aircraft Communications/Navigation/Electrical/Weapon Systems Technician-Trainee, OMA
  • 6312 Aircraft Communications/Navigation/Weapon Systems Technician, AV-8
  • 6313 Aircraft Communications/Navigation/Radar Systems Technician, EA-6
  • 6314 Unmanned Aerial Vehicle (UAV) Avionics Technician
  • 6316 Aircraft Communications/Navigation Systems Technician, KC-130
  • 6317 Aircraft Communications/Navigation Systems Technician, F/A-18
  • 6322 Aircraft Communications/Navigation/Electrical Systems Technician, CH-46
  • 6323 Aircraft Communications/Navigation/Electrical Systems Technician, CH-53
  • 6324 Aircraft Communications/Navigation/Electrical/Weapon Systems Technician, U/AH-1
  • 6326 Aircraft Communications/Navigation/Electrical/Weapon Systems Technician, V-22
  • 6331 Aircraft Electrical Systems Technician-Trainee
  • 6332 Aircraft Electrical Systems Technician, AV-8
  • 6333 Aircraft Electrical Systems Technician, EA-6
  • 6336 Aircraft Electrical Systems Technician, KC-130
  • 6337 Aircraft Electrical Systems Technician, F/A-18
  • 6338 Aircraft Avionics Technician, F-35
  • 6344 Aircraft Electric Systems Technician, UH-1N/AH-1T
  • 6386 Aircraft Electronic Countermeasures Systems Technician, EA-6B
  • 6391 Avionics Maintenance Chief
  • 6411 Aircraft Communications/Navigation Systems Technician- Trainee, IMA
  • 6412 Aircraft Communications Systems Technician, IMA
  • 6413 Aircraft Navigation Systems Technician, IFF/RADAR/TACAN, IMA
  • 6414 Advanced Aircraft Communications/Navigation Systems Technician, IMA
  • 6422 Aircraft Cryptographic Systems Technician, IMA
  • 6423 Aviation Electronic Microminiature/Instrument and Cable Repair Technician, IMA
  • 6431 Aircraft Electrical Systems Technician-Trainee
  • 6432 Aircraft Electrical/Instrument/Flight Control Systems Technician, Fixed Wing, IMA
  • 6433 Aircraft Electrical/Instrument/flight Control Systems Technician, Helicopter, IMA
  • 6434 Advanced Aircraft Electrical/Instrument/Flight Control Systems Technician, IMA
  • 6461 Hybrid Test Set Technician, IMA
  • 6462 Avionics Test Set (ATS) Technician, IMA
  • 6463 Radar Test Station (RTS)/Radar Systems Test Station (RSTS) Technician, IMA
  • 6464 Aircraft Inertial Navigation System Technician, IMA
  • 6466 Aircraft Forward Looking Infrared/Electro-Optical Technician, IMA
  • 6467 Consolidated Automatic Support System (CASS) Technician, IMA
  • 6468 Aircraft Electrical Equipment Test Set (EETS)/Mobile Electronic Test Set (METS) Technician
  • 6469 Advanced Automatic Test Equipment Technician, IMA
  • 6482 Aircraft Electronic Countermeasures Systems Technician, Fixed Wing, IMA
  • 6483 Aircraft Electronic Countermeasures Systems Technician, Helicopter, IMA
  • 6484 Aircraft Electronic Countermeasures Systems/RADCOM/CAT IIID Technician, IMA
  • 6486 Advanced Aircraft Electronic Countermeasures Technician, IMA
  • 6491 Aviation Precision Measurement Equipment (PME) Chief
  • 6492 Aviation Precision Measurement Equipment/Calibration and Repair Technician, IMA
  • 6499 Mobile Facilities Technician

 

6500’s:  Aviation Ordinance

  • 6511 Aviation Ordnance Trainee
  • 6531 Aviation Ordnance Technician
  • 6541 Aviation Ordnance Systems Technician
  • 6591 Aviation Ordnance Chief

 

6600’s:  Aviation Logistics

  • 6613 Radio Communication and Navigation Systems Technician on Utility Aircraft
  • 6617 Enlisted Aviation Logistician
  • 6672 Aviation Supply Specialist
  • 6694 Aviation Logistics Information Management and Support Specialists

 

6800’s:  Meteorological and Oceanographic (METOC)

  • 6842 METOC Analyst Forecaster
  • 6852 METOC Impact Analyst

 

7000’s:  Airfield Services

  • 7011 Expeditionary Airfield Systems Technician
  • 7041 Aviation Operations Specialist
  • 7051 Aircraft Rescue and Firefighting Specialist

 

7200’s:  Air Control/Air Support/Anti-air Warfare/Air Traffic Control

  • 7212 Low Altitude Air Defense Gunner
  • 7222 Hawk Missile Operator
  • 7234 Air Control Electronics Operator
  • 7236 Tactical Air Defense Controller
  • 7242 Air Support Operations Operator
  • 7251 Air Traffic Controller – Trainee
  • 7252 Air Traffic Controller – Tower
  • 7253 Air Traffic Controller – Radar Arrival/Departure Controller
  • 7254 Air Traffic Controller – Radar Approach Controller
  • 7257 Air Traffic Controller
  • 7291 Senior Air Traffic Controller

 

7300’s:  Navigation Officer/Enlisted Flight Crews

  • 7313 Helicopter Specialist, AH-1Z/UH-1Y
  • 7314 Unmanned Aerial Vehicle (UAV) Internal Operator
  • 7371 Tactical Systems Operator Trainee
  • 7372 Tactical Systems Operator/Mission Specialist
  • 7382 Airborne Radio Operator/In-flight Refueling Observer/Loadmaster