List of Vietnam War Era USMC Military Occupational Specialty Codes (MOS Codes), verified from information included in the Defense Casualty Analysis Extract File (DCAS), at the National Archives.
111
121 Personnel Clerk
122
130 Administrative Officer
131 Unit Diary Clerk
140
141 Administrative Man
161 Postal Clerk
202 Intelligence Officer
210
211 Counterintelligence Specialist
231 Intelligence Specialist
241 Imagery Interpretation Specialist
250 Interrogation-Translation Officer
251 Interrogation/Translation Specialist
300 Basic Infantryman
301 Basic Infantry Officer
302 Infantry Officer
310
311 Rifleman
312
312 Lav Assaultman
317
322
331 Machinegunner
332
340
341 Mortarman
351 Assaultman
352 Antitank Assault Guided Missileman
353
356
359
361 Tank/Assault Guided Missile Man
369 Infantry Unit Leader
371
381
391
392
400 Basic Logistics Marine
431 Logistics/Embarkation Specialist
441 Logistics Operations Clerk
511
571
611
721
801 Basic Field Artillery Officer
802 Field Artillery Officer
805
811 Field Artillery Cannoneer
812 Field Artillery Nuclear Projectileman
822
840
842 Field Artillery Radar Operator
844 Field Artillery Fire Control Man
846 Artillery Scout Observer
847 Artillery Meteorological Man
848 Field Artillery Operations Man
849 Shore Fire Control Party Man
869
1121 Plumbing And Water Supply Specialist
1137
1141 Electrician
1161 Refrigeration Mechanic
1169 Utilities Chief
1300 Basic Engineer, Construction, And Equipment Marine
1301 Basic Engineer, Construction, And Equipment Officer
1302 Engineer Officer
1310 Engineer Equipment Officer
1311
1316 Metal Worker
1317
1319
1321
1331
1341 Engineer Equipment Mechanic
1342 Small Craft Mechanic
1345 Engineer Equipment Operator
1349 Engineer Equipment Chief
1371 Combat Engineer
1372 Atomic Demolition Employment Technician
1381 Shore Party Specialist
1391 Bulk Fuel Specialist
1411 Construction Drafter
1431 Map Compiler
1441
1671
1800 Basic Tank And Assault Amphibious Vehicle Crewman
1801 Basic Tank And Assault Amphibious Vehicle Officer
1802 Tank Officer
1803 Assault Amphibious Vehicle (Aav) Officer
1811 M60A1 Tank Crewman
1830
1831 Armored Amphibian Crewman
1833 Assault Amphibious Vehicle Crewman
2002 Ordnance Officer
2010 Tracked Vehicle Maintenance Officer
2020 Weapons Repair Officer
2045 Explosive Ordnance Disposal Officer
2050
2056
2111 Small Arms Repairer/Technician
2131 Towed Artillery Systems Technician
2141 Assault Amphibious Vehicle (Aav) Repairer/Technician
2142 Tracked Vehicle Repairer, Assault Amphibious Vehicle
2143 Self-Propelled Artillery (Sparty) Repairer/Technician
2144 Tracked Vehicle Repairer, Self-Propelled
2149 Ordnance Vehicle Maintenance Chief
2161 Machinist
2171 Electro-Optical Ordnance Repairer
2211
2311 Ammunition Technician
2335 Explosive Ordnance Disposal Technician (Conventional Weapons)
2336 Explosive Ordnance Disposal Technician
2351
2500 Basic Operational Communicator
2502 Communications Officer
2511 Wireman
2515 Uls Central Office Operator/Maintainer
2519 Wire Chief
2521
2529
2531 Field Radio Operator
2532 Multichannel Equipment Operator
2533 Radio Telegraph Operator
2535 Fleet Satcom Terminal Operator
2537 Radio Chief
2539 Ground Mobile Forces Satcom Radio Chief
2542 Communication Center Operator
2543
2553
2571 Special Radio Operator
2575 Special Communication Operator
2578
2805 Data/Communications Maintenance Officer (Iii)
2811 Telephone Technician
2815 Kw-7 Cryptographic Technician
2818 Personal Computer (Pc)/Tactical Office Machine Repairer
2831 Multi-Channel Equipment Repairer
2841 Ground Radio Repairer
2847
2851 Aviation Radio Repairman
2861 Radio Technician
3001 Basic Supply Admin And Operations Off
3002 Ground Supply Officer
3010 Ground Supply Operations Officer (Iii)
3041 Supply Administrative Man - Manual Accounting
3042 Supply Administrative Man - Mechanized Accounting
3046
3051 Warehouse Clerk
3055
3060 Aviation Supply Officer
3065
3071 Supply Man, Manual Account
3081 Purchasing And Contracting Specialist
3111 Freight Operations Clerk
3200 Basic Supply Services Man
3211 Fabric Repair Specialist
3261 Laundry Machine Operator
3311 Baker
3317
3331
3351
3371 Cook
3381 Food Service Specialist
3410 Naf Auditing Officer (Ii, Iii)
3421 Personal Financial Records Clerk
3500 Basic Motor Transport Marine
3501 Basic Motor Transport Officer
3502 Motor Transport Officer
3511
3516 Automotive Mechanic
3531 Motor Vehicle Operator
3537 Motor Transport Operations Chief
3691
3711
3811
3911
4021
4111 Bookkeeper, Nonappropriated Funds
4312 Print Journalist
4313 Broadcast Journalist
4411
4564
4611
4631 Photographer
4671 Combat Photographer/Motion Media
5311
5534 Musician, Clarinet
5541 Musician, Cornet/Trumpet
5544 Musician, French Horn
5546 Musician, Trombone
5591
5711 Nuclear, Biological And Chemical Defense Specialist
5742
5762
5802
5831 Correctional Specialist
5910 Aviation Radar Maintenance Officer
5913
5915
5931 Ground Radar Repairman
5949
6014 Unmanned Aerial Vehicle (Uav) Mechanic
6018 Aircraft Mechanic, Ov-10
6024 Aircraft Power Plants Mechanic, J-79
6028 Aircraft Mechanic Reciprocating
6042 Support Equipment Asset Manager
6055 Aircraft Airframe Mechanic Av-8/Tav-8
6064 Flight Equipment Marine
6078 Aircraft Maintenance Gse Refrigeration Mechanic
6082 Aircraft Safety Equipment Mechanic, A-4/Ta-4
6112 Helicopter Mechanic, Ch-46
6113 Helicopter Mechanic, Ch-53
6114 Helicopter Mechanic, U/Ah-1
6119 Helicopter Maintenance Chief
6122 Helicopter Power Plants Mechanic, T-58
6123 Helicopter Power Plants Mechanic, T-64
6132 Helicopter Dynamic Components Mechanic
6211
6212
6221
6234 Aircraft Radar Attack Systems Technician, A6
6241
6242 Aircraft Electrical Systems Technician, Transport And Helicopter
6243 Aircraft Electrical Systems Technician, Ta4/A4/F8/F4/Rf4
6244
6271
6281
6311 Aircraft Communications/Navigation/Electrical/Weapon Systems Technician - Train
6312 Aircraft Communications/Navigation/Electrical/Weapon/Decm Systems Technician A-4
6313 Aircraft Comm/Nav/Radar Systems Tech, Ea-6
6316 Aircraft Comm/Nav Systems Tech, Kc-130
6319
6320
6321
6322 Aircraft Comm/Nav/Elec Syst Tech, Ch-46
6329
6331 Aircraft Electrical Systems Technician - Trainee
6332 Aircraft Electronic Systems Technician A-4/Ta-4/Oa-4
6341
6342 Aircraft Electronic Systems Technician Ch-46
6351 Advanced Avionics Technician-Trainee
6361
6371 Aerial Camera Systems Technician, Trainee
6373
6381
6391 Avionics Maintenance Chief
6402 Aircraft Maintenance Officer
6411 Aircraft Communications/Navigation Systems Technician-Trainee Ima
6413 Aircraft Navigation Sys Tech, Iff/Radar/Tacan, Ima
6415 Aircraft Navigation Systems Technician, Radar, Ima
6418
6422 Aircraft Cryptographic Systems Technician, Ima
6441
6442 A/C Analog Display System Sace Technician
6444 Aircraft Radar Systems Technician, A-6E/
6461
6481
6491 Aviation Precision Measurement Equipment (Pme) Chief
6511 Aviation Ordnance Trainee
6611 A/C Communications/Navigation Systems Technician
6612 Aircraft Communication./Navigation Systems Technician
6615 Aircraft Communications/Navigation System
6637 Aircraft Electrical Systems Technician
6691 Avionics Maintenance Chief
6709 Air Defense Control Officer
6712
6713
6720 Air Traffic Control Officer, Automated Systems
6725 Airborne Radio Operator
6730
6735
6741
6742
6761
6811
7002 Aircraft Fire Protection And Recovery Officer (Iii)
7011 Aircraft Recovery Specialist
7041 Aviation Operations Specialist
7050
7051 Aircraft Firefighting And Rescue Specialist
7113
7141 Air Delivery Man
7162
7251
7301 Basic Air Traffic Control Officer
7302 Pilot Vmf
7305 Pilot Vmr (Aw) Single Place
7307 Pilot Vmr (Aw) Multi Place
7308 Pilot Vmgr
7331 Pilot Vme (Prop)
7332
7333 Pilot Vme (Jet)
7335 Pilot Hmh
7336
7339
7352
7354 Airborne Electronic Countermeasures/Reconnaissance Officer
7371 Aerial Navigator - Trainee
7501 Pilot Vma A-4 Qualified
7511 Pilot Vma (Aw) , Frs Basic A-6
7521 Frs Basic F/A-18 Pilot
7522 Pilot Vmfa F-4S
7532 Pilot Vmf/Vmf(Aw)F-8D/E
7542 Pilot Vmaq/Ea-6A
7545 Pilot Vmfp/Rf-4B
7557 Kc-130 Aircraft Commander
7561 Frs Basic Ch-46 Pilot
7562 Pilot Ch-46 Qualified
7563 Pilot Hmh/M/L/A Uh-1N Qualified
7564 Pilot Ch-53 A/D Qualified
7565 Pilot Hmh/M/L/A Ah-1 Qualified
7576 Pilot Vmo/Ov-10
7582 Frs Basic Ea-6A/B Electronic Warfare Officer
7583 Qualified A-6E Bombardier/Navigator
7584 Qualified Ea-6A Electronic Warfare Officer
7585 Qualified Rf-4B Airborne Reconnaissance Officer
7586 Electronic/Warfare/Airborne Reconnaissance Officer
7587 F-4S Radar Intercept Officer
7597 Basic Rotary Wing Pilot
7599 Flight Student (Tbs)
7611
7711
7811
8035
8311
8511 Drill Instructor
8531 Range Coach
8533
8541 Scout-Sniper
8600
8651
9900 General Service Marine
9901 Basic Officer
9903 General Officer
9906 Colonel, Ground
9907 Colonel, Naval Aviator/Naval Flight Officer
