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.
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
A
130 Administrative Officer
131 Administrative Clerk / Unit Diary Clerk
141 Administrative Man
351 Assaultman
352 Antitank Assault Guided Missileman
846 Artillery Scout Observer
847 Artillery Meteorological Man
1372 Atomic Demolition Employment Technician
1803 Assault Amphibious Vehicle (Aav) Officer
1831 Armored Amphibian Crewman
1833 Assault Amphibious Vehicle Crewman
2141 Assault Amphibious Vehicle (Aav) Repairer/Technician
2311 Ammunition Technician
2851 Aviation Radio Repairman
3060 Aviation Supply Officer
5910 Aviation Radar Maintenance Officer
6018 Aircraft Mechanic, Ov-10
6024 Aircraft Power Plants Mechanic, J-79
6028 Aircraft Mechanic Reciprocating
6055 Aircraft Airframe Mechanic Av-8/Tav-8
6078 Aircraft Maintenance Gse Refrigeration Mechanic
6082 Aircraft Safety Equipment Mechanic, A-4/Ta-4
6234 Aircraft Radar Attack Systems Technician, A6
6242 Aircraft Electrical Systems Technician, Transport And Helicopter
6243 Aircraft Electrical Systems Technician, Ta4/A4/F8/F4/Rf4
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
6322 Aircraft Comm/Nav/Elec Syst Tech, Ch-46
6331 Aircraft Electrical Systems Technician - Trainee
6332 Aircraft Electronic Systems Technician A-4/Ta-4/Oa-4
6342 Aircraft Electronic Systems Technician Ch-46
6351 Advanced Avionics Technician-Trainee
6371 Aerial Camera Systems Technician, Trainee
6391 Avionics Maintenance Chief
6402 Aircraft Maintenance Officer
6411 Aircraft Communications/Navigation Systems Technician-Trainee Ima
6422 Aircraft Cryptographic Systems Technician, Ima
6442 A/C Analog Display System Sace Technician
6444 Aircraft Radar Systems Technician, A-6E/
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
6720 Air Traffic Control Officer, Automated Systems
6725 Airborne Radio Operator
7002 Aircraft Fire Protection And Recovery Officer (Iii)
7011 Aircraft Recovery Specialist
7041 Aviation Operations Specialist
7051 Aircraft Firefighting And Rescue Specialist
6078 Aircraft Maintenance Gse Refrigeration Mechanic
6402 Aircraft Maintenance Officer
6028 Aircraft Mechanic Reciprocating
6018 Aircraft Mechanic, Ov-10
6024 Aircraft Power Plants Mechanic, J-79
6234 Aircraft Radar Attack Systems Technician, A6
6444 Aircraft Radar Systems Technician, A-6E/
7011 Aircraft Recovery Specialist
6082 Aircraft Safety Equipment Mechanic, A-4/Ta-4
2311 Ammunition Technician
352 Antitank Assault Guided Missileman
1831 Armored Amphibian Crewman
847 Artillery Meteorological Man
846 Artillery Scout Observer
1803 Assault Amphibious Vehicle (Aav) Officer
2141 Assault Amphibious Vehicle (Aav) Repairer/Technician
1833 Assault Amphibious Vehicle Crewman
351 Assaultman
6511 Aviation Ordnance Trainee
7041 Aviation Operations Specialist
6491 Aviation Precision Measurement Equipment (Pme) Chief
5910 Aviation Radar Maintenance Officer
2851 Aviation Radio Repairman
3060 Aviation Supply Officer
6391 Avionics Maintenance Chief
6691 Avionics Maintenance Chief
B
3311 Baker
1300 Basic Engineer, Construction, And Equipment Marine
1301 Basic Engineer, Construction, And Equipment Officer
801 Basic Field Artillery Officer
300 Basic Infantryman
301 Basic Infantry Officer
400 Basic Logistics Marine
3500 Basic Motor Transport Marine
3501 Basic Motor Transport Officer
2500 Basic Operational Communicator
3001 Basic Supply Admin And Operations Off
3200 Basic Supply Services Man
1800 Basic Tank And Assault Amphibious Vehicle Crewman
1801 Basic Tank And Assault Amphibious Vehicle Officer
4111 Bookkeeper, Nonappropriated Funds
4313 Broadcast Journalist
1391 Bulk Fuel Specialist
C
1371 Combat Engineer
4671 Combat Photographer/Motion Media
2542 Communication Center Operator
2502 Communications Officer
1411 Construction Drafter
3371 Cook
5831 Correctional Specialist
211 Counterintelligence Specialist
D
2805 Data/Communications Maintenance Officer (Iii)
E
1141 Electrician
2171 Electro-Optical Ordnance Repairer
1302 Engineer Officer
1310 Engineer Equipment Officer
1349 Engineer Equipment Chief
1341 Engineer Equipment Mechanic
1345 Engineer Equipment Operator
2045 Explosive Ordnance Disposal Officer
2336 Explosive Ordnance Disposal Technician
2335 Explosive Ordnance Disposal Technician (Conventional Weapons)
F
3211 Fabric Repair Specialist
811 Field Artillery Cannoneer
844 Field Artillery Fire Control Man
812 Field Artillery Nuclear Projectileman
802 Field Artillery Officer
848 Field Artillery Operations Man
842 Field Artillery Radar Operator
2531 Field Radio Operator
2535 Fleet Satcom Terminal Operator
6064 Flight Equipment Marine
3381 Food Service Specialist
3111 Freight Operations Clerk
G
2539 Ground Mobile Forces Satcom Radio Chief
5931 Ground Radar Repairman
3002 Ground Supply Officer
3010 Ground Supply Operations Officer (Iii)
H
6132 Helicopter Dynamic Components Mechanic
6119 Helicopter Maintenance Chief
6112 Helicopter Mechanic, Ch-46
6113 Helicopter Mechanic, Ch-53
6114 Helicopter Mechanic, U/Ah-1
6122 Helicopter Power Plants Mechanic, T-58
6123 Helicopter Power Plants Mechanic, T-64
I
241 Imagery Interpretation Specialist
302 Infantry Officer
369 Infantry Unit Leader
202 Intelligence Officer
231 Intelligence Specialist
250 Interrogation-Translation Officer
251 Interrogation/Translation Specialist
K
2815 Kw-7 Cryptographic Technician
L
312 Lav Assaultman
3261 Laundry Machine Operator
4411 Logistics Operations Clerk
431 Logistics/Embarkation Specialist
M
1811 M60A1 Tank Crewman
2161 Machinist
331 Machinegunner
1431 Map Compiler
1316 Metal Worker
341 Mortarman
3502 Motor Transport Officer
3537 Motor Transport Operations Chief
3531 Motor Vehicle Operator
2532 Multichannel Equipment Operator
2831 Multi-Channel Equipment Repairer
5534 Musician, Clarinet
5541 Musician, Cornet/Trumpet
5544 Musician, French Horn
5546 Musician, Trombone
N
3410 Naf Auditing Officer (Ii, Iii)
5711 Nuclear, Biological And Chemical Defense Specialist
O
2002 Ordnance Officer
2149 Ordnance Vehicle Maintenance Chief
P
2818 Personal Computer (Pc)/Tactical Office Machine Repairer
3421 Personal Financial Records Clerk
121 Personnel Clerk
4631 Photographer
1121 Plumbing And Water Supply Specialist
161 Postal Clerk
4312 Print Journalist
3081 Purchasing And Contracting Specialist
R
2537 Radio Chief
2861 Radio Technician
2533 Radio Telegraph Operator
1161 Refrigeration Mechanic
311 Rifleman
S
2143 Self-Propelled Artillery (Sparty) Repairer/Technician
1381 Shore Party Specialist
849 Shore Fire Control Party Man
1342 Small Craft Mechanic
2111 Small Arms Repairer/Technician
2575 Special Communication Operator
2571 Special Radio Operator
6042 Support Equipment Asset Manager
3041 Supply Administrative Man - Manual Accounting
3042 Supply Administrative Man - Mechanized Accounting
3071 Supply Man, Manual Account
T
361 Tank/Assault Guided Missile Man
1802 Tank Officer
2811 Telephone Technician
2131 Towed Artillery Systems Technician
2010 Tracked Vehicle Maintenance Officer
2142 Tracked Vehicle Repairer, Assault Amphibious Vehicle
2144 Tracked Vehicle Repairer, Self-Propelled
U
2515 Uls Central Office Operator/Maintainer
6014 Unmanned Aerial Vehicle (Uav) Mechanic
1169 Utilities Chief
W
3051 Warehouse Clerk
2020 Weapons Repair Officer
2519 Wire Chief
2511 Wireman
