First-line supervisors of mechanics, installers, and repairers perform work familiar to some military personnel.

Jobs in this career are similar to the following job classifications in the

120A
Construction Engineering Technician (Warrant Officer only)
12K
Plumber (Enlisted)
12P
Prime Power Production Specialist (Enlisted)
131A
Field Artillery Targeting Technician (Warrant Officer only)
13M
Multiple Launch Rocket System (MLRS)/High Mobility Artillery Rocket System (HIMARS) Crewmember (Enlisted)
13P
Multiple Launch Rocket System (MLRS) Operations/Fire Direction Specialist (Enlisted)
13R
Field Artillery (FA) Firefinder Radar Operator (Enlisted)
13T
Field Artillery Surveyor/Meteorological Crewmember (Enlisted)
140E
Air and Missile Defense (AMD) Systems Tactician/Technician (Warrant Officer only)
140X
Air Defense Artillery (ADA) Immaterial (Warrant Officer only)
14E
PATRIOT Fire Control Enhanced Operator/Maintainer (Enlisted)
14G
Air Defense (AD) Battle Management System Operator (Enlisted)
14H
Air Defense (AD) Enhanced Early Warning System Operator (Enlisted)
14S
Air and Missile Defense (AMD) Crewmember (Enlisted)
14T
PATRIOT Launching Station Enhanced Operator/Maintainer (Enlisted)
151A
Aviation Maintenance Technician (Nonrated) (Warrant Officer only)
15E
Unmanned Aircraft Systems Repairer (Enlisted)
15K
Aircraft Components Repair Supervisor (Enlisted)
15T
UH-60 Helicopter Repairer (Enlisted)
15Z
Aircraft Maintenance Senior Sergeant (Enlisted)
18E
Special Forces Communications Sergeant (Enlisted)
255A
Information Services Technician (Warrant Officer only)
255S
Information Protection Technician (Warrant Officer only)
255Z
Senior Network Operations Technician (Warrant Officer only)
25C
Radio Operator-Maintainer (Enlisted)
25E
Electromagnetic Spectrum Manager (Enlisted)
25L
Cable Systems Installer-Maintainer (Enlisted)
25N
Nodal Network Systems Operator-Maintainer (Enlisted)
25P
Microwave Systems Operator-Maintainer (Enlisted)
25Q
Multichannel Transmission Systems Operator-Maintainer (Enlisted)
25S
Satellite Communications Systems Operator-Maintainer (Enlisted)
25T
Satellite/Microwave Systems Chief (Enlisted)
25U
Signal Support Systems Specialist (Enlisted)
25W
Telecommunications Operations Chief (Enlisted)
25X
Chief Signal NCO (Enlisted)
25Z
Visual Information Operations Chief (Enlisted)
353T
Intelligence Electronic Warfare (IEW) Systems Maintenance Technician (Warrant Officer only)
35S
Signals Collector/Analyst (Enlisted)
35T
Military Intelligence (MI) Systems Maintainer/Integrator (Enlisted)
670A
Health Services Maintenance Technician (Warrant Officer only)
890A
Ammunition Warrant Officer (Warrant Officer only)
89B
Ammunition Specialist (Enlisted)
913A
Armament Systems Maintenance Warrant Officer (Warrant Officer only)
915A
Automotive Maintenance Warrant Officer (Warrant Officer only)
915E
Senior Automotive Maintenance Warrant Officer/Senior Ordnance Logistics Warrant Officer (Warrant Officer only)
919A
Engineer Equipment Maintenance Warrant Officer (Warrant Officer only)
91A
M1 Abrams Tank System Maintainer (Enlisted)
91B
Wheeled Vehicle Repairer (Enlisted)
91C
Utilities Equipment Repairer (Enlisted)
91D
Power Generation Equipment Repairer (Enlisted)
91E
Allied Trades Specialist (Enlisted)
91F
Small Arms/Artillery Repairer (Enlisted)
91G
Fire Control Repairer (Enlisted)
91H
Tracked Vehicle Repairer (Enlisted)
91J
Quartermaster and Chemical Equipment Repairer (Enlisted)
91L
Construction Equipment Repairer (Enlisted)
91M
BRADLEY Fighting Vehicle System Maintainer (Enlisted)
91P
Artillery Mechanic (Enlisted)
91S
STRYKER Systems Maintainer (Enlisted)
91X
Maintenance Supervisor (Enlisted)
91Z
Senior Maintenance Supervisor (Enlisted)
948B
Electronic Systems Maintenance Warrant Officer (Warrant Officer only)
948D
Electronic Missile Systems Maintenance Warrant Officer (Warrant Officer only)
948E
Senior Electronics Maintenance Warrant Officer (Warrant Officer only)
94A
Land Combat Electronic Missile System Repairer (Enlisted)
94D
Air Traffic Control Equipment Repairer (Enlisted)
94E
Radio and Communications Security (COMSEC) Repairer (Enlisted)
94F
Computer/Detection Systems Repairer (Enlisted)
94H
Test, Measurement, and Diagnostic Equipment (TMDE) Maintenance Support Specialist (Enlisted)
94M
Radar Repairer (Enlisted)
94P
Multiple Launch Rocket System (MLRS) Repairer (Enlisted)
94R
Avionic and Survivability Equipment Repairer (Enlisted)
94S
PATRIOT System Repairer (Enlisted)
94T
AVENGER System Repairer (Enlisted)
94W
Electronic Maintenance Chief (Enlisted)
94X
Senior Missile Systems Maintainer (Enlisted)
94Y
Integrated Family of Test Equipment (IFTE) Operator and Maintainer (Enlisted)
94Z
Senior Electronic Maintenance Chief (Enlisted)

The following military occupations are no longer in active use:

140B
FAAD Systems Technician (RC) (Warrant Officer only)
140D
HAWK System Technician (RC) (Warrant Officer only)
15Z
Field Artillery Missile-Rocket Senior Sergeant (Enlisted)
210A
Construction Engineering Technician (Warrant Officer only)
21R
SERGEANT Firing Set Repairman (Enlisted)
21U
SERGEANT Maintenance Chief (Enlisted)
250A
Telecommunications Technician (Warrant Officer only)
250B
Tactical Automated Network Technician (Warrant Officer only)
256A
Communications-Electronics Equipment Repair Technician (Warrant Officer only)
27Z
Missile Systems Maintenance Chief (Enlisted)
29W
Electronics Maintenance Supervisor (Enlisted)
29Z
Electronics Maintenance Chief (Enlisted)
31G
Tactical Communications Chief (Enlisted)
31T
Satellite/Microwave Systems Chief (Enlisted)
31W
Telecommunications Operations Chief (Enlisted)
31X
Communications Systems Circuit Control Supervisor (Enlisted)
31Y
Telecommunications Systems Supervisor (Enlisted)
31Z
Senior Signal Sergeant (Enlisted)
33Z
EW/Intercept Systems Maintenance Supervisor (Enlisted)
353A
Intelligence Electronic Warfare (IEW) Systems Maintenance Technician (Warrant Officer only)
35P
Avionic Equipment Maintenance Supervisor (Enlisted)
35V
Electronic and Missile Systems Maintenance Chief (Enlisted)
35W
Electronic Maintenance Chief (Enlisted)
35Z
Senior Electronics Maintenance Chief (Enlisted)
39W
Radar Special Electronic Devices Maintenance Chief (Enlisted)
63X
Maintenance Supervisor (Enlisted)
63Z
Mechanical Maintenance Supervisor (Enlisted)
67Z
Aircraft Maintenance Senior Sergeant (Enlisted)
68K
Aircraft Components Repair Supervisor (Enlisted)
912A
Land Combat Missile Systems Repair Technician (Warrant Officer only)
915B
Light Systems Maintenance Technician (Warrant Officer only)
915D
Unit Maintenance Technician (Heavy) (Warrant Officer only)
916A
High-to-Medium Altitude Air Defense (HIMAD) DS/GS Maintenance Tech (Warrant Officer only)
917A
Maneuver Forces Air Defense Systems (MFADS) Technician (Warrant Officer only)
918A
TMDE Maintenance Support (Warrant Officer only)
918B
Electronic Systems Maintenance Warrant Officer (Warrant Officer only)
918D
Electronics-Missile Maintenance Warrant Officer (Warrant Officer only)
918E
Senior Electronics Maintenance Warrant Officer (Warrant Officer only)
94V
Electronic and Missile Systems Maintenance Chief (Enlisted)