The Army's mechanics, welders, and technical experts. Ordnance Soldiers keep every vehicle, weapon system, and piece of equipment mission-ready — from the motor pool to the battlefield.
The 91-Series is the Army's largest support branch. From wheeled vehicle mechanics to power generation specialists, Ordnance Soldiers ensure every piece of equipment is operational and combat-ready.
Maintaining the Army's heavy armor. Tank Maintainers repair the complex systems and engines of the M1 Abrams main battle tank.
The backbone of Army maintenance. Wheeled Mechanics keep HMMWVs, LMTVs, and FMTVs rolling in all environments.
Maintainers repair generators, HVAC systems, and plumbing infrastructure that keep installations and field ops running.
Specialists operate and maintain tactical power generation systems, ensuring units have electricity in the field.
The fabrication experts. Specialists operate machinery and welding equipment to manufacture and repair critical components.
Maintaining the Army's lethality. Repairers maintain handguns, rifles, and artillery pieces.
The pinnacle of enlisted Ordnance leadership. 91Zs manage equipment readiness and maintenance programs for large units.
Junior enlisted Ordnance Soldiers begin their career on the shop floor, performing maintenance tasks under the supervision of experienced NCOs. This is where you build your technical foundation — learning to diagnose faults, execute repairs, and master the technical manuals for your assigned platform.
Promotion to SPC/E-4 typically occurs within 2-3 years and brings increased responsibility as a lead mechanic or shop specialist. This is the time to earn platform certifications and begin pursuing ASE credentials.
Ordnance NCOs lead maintenance sections and shops, directly responsible for the readiness of assigned equipment. Sergeants (E-5) serve as shop foremen or team leaders, while Staff Sergeants (E-6) run maintenance sections and serve as quality control inspectors.
Completion of BLC (Basic Leader Course) is required for E-5, and ALC (Advanced Leader Course) for E-6. Technical Inspector certification and advanced platform training significantly improve promotion potential.
Senior Ordnance NCOs are the most experienced maintenance leaders in the Army. Sergeants First Class (E-7) serve as Maintenance Supervisors and Platoon Sergeants, Master Sergeants/First Sergeants (E-8) lead at company level, and Sergeants Major/Command Sergeants Major (E-9) serve at battalion, brigade, and higher echelons.
These positions are highly competitive and board-selected. A record of maintaining high equipment readiness rates, advanced school completion, and consistent top-block evaluations are essential.
The Warrant Officer track is the premier career path for Ordnance Soldiers who want to become the Army's highest-level technical experts. Ordnance Warrant Officers (MOS 913A, 914A, 915A, 919A) serve as maintenance technicians, property book officers, and senior maintenance advisors from company through theater level.
Warrant Officers bridge the gap between NCO expertise and officer authority. They are the subject matter experts that commanders rely on for maintenance program management, equipment fielding, and technical problem-solving. Many Ordnance Soldiers view the Warrant Officer path as the ultimate career goal.
| Installation | Location | Division / Unit | Type |
|---|---|---|---|
| Fort Gregg-Adams | VA | Ordnance School / CASCOM | TRADOC |
| Fort Liberty | NC | 82nd Airborne / XVIII ABC BSB | FORSCOM |
| Fort Campbell | KY/TN | 101st Airborne (Air Assault) BSB | FORSCOM |
| Fort Carson | CO | 4th Infantry Division BSB | Mechanized |
| Fort Stewart | GA | 3rd Infantry Division BSB | Mechanized |
| Fort Moore | GA | Maneuver Center / 3rd ID FSC | FORSCOM |
| Fort Drum | NY | 10th Mountain Division BSB | Light Infantry |
| Fort Cavazos | TX | 1st Cavalry / III Corps BSB | Mechanized |
| Grafenwoehr / Vilseck | Germany | 2CR / 173rd Support | OCONUS |
| Camp Humphreys | South Korea | 2nd Infantry Division BSB | OCONUS |
Ordnance Soldiers serve at every installation worldwide — mechanics go everywhere. Duty station assignment depends on unit needs, platform specialization, and soldier preference (CONUS/OCONUS).
From the motor pool at Fort Gregg-Adams to the maintenance bays of every forward operating base, Ordnance Soldiers keep the Army's equipment mission-ready around the clock.
Explore Training Courses91B Wheeled Vehicle Mechanic is the most common Ordnance MOS. If you love turning wrenches, diagnosing problems, and keeping trucks rolling, this is your career field. Skills transfer directly to civilian automotive careers.
The Army supports ASE (Automotive Service Excellence) certification for Ordnance Soldiers. Earn industry-recognized credentials while serving — civilian employers pay a premium for ASE-certified mechanics.
Ordnance offers one of the best paths to Warrant Officer. Become the Army's top technical expert in maintenance, earn WO1 through CW5 rank, and lead maintenance programs at the highest levels.
91D Tactical Power Generation Specialists keep the lights on for every command post, TOC, and field operation. Without power, nothing works. It is a critical and always-in-demand specialty.
Ordnance skills translate directly to civilian careers in automotive, diesel, HVAC, electrical, and industrial maintenance. Army mechanics are among the most sought-after veterans in the civilian workforce.
Ordnance promotion to E-5 averages 3-4 years. BLC completion, strong NCOERs, Technical Inspector certification, and high equipment readiness rates dramatically accelerate the timeline.
Ordnance is the largest support branch in the Army and one of the best for building real-world technical skills. If you want to keep the force combat-ready, earn industry certifications, and set yourself up for a lucrative civilian career in maintenance, the 91-Series is the path. Show up ready to learn, get your hands dirty, and never let a deadline vehicle sit.
Start Ordnance PrepArmis Victoriam
Victory Through ArmsWe are the Ordnance Corps.
We maintain every vehicle, every weapon system,
every piece of equipment the Army owns.
Without us, nothing moves. Nothing fires. Nothing fights.From the motor pool to the battlefield,
we keep the force mission-ready.
We are the mechanics, the technicians,
the quiet professionals who ensure
that when the trigger is pulled,
the round goes downrange.Armis Victoriam!