USMC MOS Codes, Vietnam War Era

 

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

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