
ORDNANCE MECHANICAL MAINTENANCE SCHOOL
Helping The Army Stay At The Ready
Ordnance Soldiers ensure that weapons systems, vehicles, and tactical support equipment are in perfect working condition.
During AIT, you will learn how to perform mechanical and electrical maintenance on tanks, small arms weapons, Humvees, trucks, mobile electric power generation systems, air conditioners, and various other systems. Depending on your selected Army job, you may also learn machinist and welding skills.
Ordnance Soldiers have the opportunity to obtain certification with national technical accrediting agencies, such as the American Welding Society (AWS), the National Institute of Metalworking Skills (NIMS), and the Automotive Society of Excellence (ASE). Many of these skills also translate into college credit towards a degree.
Related Jobs
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Artillery Mechanic (91P)
The artillery mechanic is primarily responsible for supervising and performing maintenance and recovery operations of all self-propelled field artillery cannon weapon systems — including automotive, turret, fire control and chemical protection subsystems.
- Active/Reserve: Both
- Officer/Enlisted: Enlisted
- Restrictions: None
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M1 ABRAMS Tank System Maintainer (91A)
The M-1 Abrams tank system maintainer is primarily responsible for supervising and performing maintenance on Abrams tanks.
- Active/Reserve: Both
- Officer/Enlisted: Enlisted
- Restrictions: None
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Quartermaster and Chemical Equipment Repairer (91J)
The quartermaster and chemical equipment repairer are primarily responsible for supervising or performing maintenance on chemical equipment, quartermaster machinery, forced air-heaters and special purpose equipment.
- Active/Reserve: Both
- Officer/Enlisted: Enlisted
- Restrictions: None
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Small Arms/Artillery Repairer (91F)
The small arms/artillery repairer is responsible for keeping a wide array of weapons — from small arms to field artillery and large ballistic missiles — operating properly.
- Active/Reserve: Both
- Officer/Enlisted: Enlisted
- Restrictions: None
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Track Vehicle Repairer (91H)
The track vehicle repairer is primarily responsible for performing maintenance on tracked vehicles and supervising activities that include fuel and electrical system repair and maintenance.
- Active/Reserve: Both
- Officer/Enlisted: Enlisted
- Restrictions: None
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Bradley Fighting Vehicle System Maintainer (91M)
The Bradley fighting vehicle system maintainer handles the maintenance and repair of the M2/M3, A2/A3 Bradley fighting vehicle, the M6 Bradley linebacker air defense vehicle and the M-7 Bradley fire support team vehicle.
- Active/Reserve: Both
- Officer/Enlisted: Enlisted
- Restrictions: None
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Allied Trade Specialist (91E)
The allied trade specialist is primarily responsible for supervising and performing the fabrication, repair and modification of metallic and nonmetallic parts. They operate lathes, drill presses, grinders and other machine shop equipment.
- Active/Reserve: Both
- Officer/Enlisted: Enlisted
- Restrictions: None
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Tactical Power Generation Specialist (91D)
The tactical power generation specialist is responsible for supervising and performing maintenance and overhaul of power-generation equipment, internal combustion engines and associated equipment in mobile and stationary power plants.
- Active/Reserve: Both
- Officer/Enlisted: Enlisted
- Restrictions: None
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Utilities Equipment Repairer (91C)
The utilities equipment repairer is responsible for supervising and performing maintenance on utilities equipment and special purpose support systems.
- Active/Reserve: Both
- Officer/Enlisted: Enlisted
- Restrictions: None
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Wheeled Vehicle Mechanic (91B)
The wheeled vehicle mechanic is primarily responsible for supervising and performing maintenance and recovery operations on wheeled vehicles and associated items, as well as heavy-wheeled vehicles and select armored vehicles.
- Active/Reserve: Both
- Officer/Enlisted: Enlisted
- Restrictions: None
Related Civilian Jobs
- Automotive Technician
- Machinist
- Welder
- HVAC Mechanic
- Gunsmith
- Metal Worker
- Heavy Equipment Mechanic
- Marine Engine Mechanic
- Facilities Equipment Mechanic
- Powerman