In the Military

Plumbers, pipefitters, and steamfitters perform work familiar to some military personnel.

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

  • 3E411 Water and Fuel Systems Maintenance Helper (Enlisted)
  • 3E431 Water and Fuel Systems Maintenance Apprentice (Enlisted)
  • 3E451A Water and Fuel Systems Maintenance Journeyman, Fuel Systems Maintenance (Enlisted)
  • 3E451 Water and Fuel Systems Maintenance Journeyman (Enlisted)
  • 3E471A Water and Fuel Systems Maintenance Craftsman, Fuel Systems Maintenance (Enlisted)
  • 3E471 Water and Fuel Systems Maintenance Craftsman (Enlisted)
  • 3E490 Infrastructure Systems Superintendent (Enlisted)
  • 3E4X1 Water and Fuel Systems Maintenance (Enlisted)
  • 120A Construction Engineering Technician (Warrant Officer only)
  • 12B Combat Engineer (Enlisted)
  • 12H Construction Engineering Supervisor (Enlisted)
  • 12K Plumber (Enlisted)
  • 13B Cannon Crewmember (Enlisted)
  • 19D Cavalry Scout (Enlisted)
  • 91B Wheeled Vehicle Mechanic (Enlisted)

The following military occupations are no longer in active use:

  • 21K Plumber (Enlisted)
  • 51K Plumber (Enlisted)
  • DC Damage Controlman (Enlisted)
  • ENG Naval Engineering Specialty (Warrant Officer only)
  • MAT Material Maintenance Specialty (Warrant Officer only)
  • MK Machinery Technician (Enlisted)
  • MSSE Marine Safety Specialist Engineer (Warrant Officer only)

The following military occupations are no longer in active use:

  • 313 Shipfitter - Pipefitter (Enlisted)
  • 704 Utilitiesman - Plumber (Enlisted)
  • 1120 Utilities Officer (Warrant Officer only)
  • 1169 Utilities Chief (Enlisted)
  • 1171 Water Support Technician (Enlisted)
  • 1302 Combat Engineer Officer (Commissioned Officer only)
  • 1371 Combat Engineer (Enlisted)
  • 001519 Auxiliary Equipment Technician (Enlisted)
  • 001797 Utilitiesman (Enlisted)
  • 003004 Hull Systems Maintainer (Enlisted)
  • 003556 Hull Systems Technician (Enlisted)
  • 003763 Maintenance Technician (Enlisted)
  • 4205 Facilities Engineering Officer (Commissioned or Warrant Officer)
  • 4230 Facilities Construction/Facilities Services Officer (Commissioned or Warrant Officer)
  • 4250 Public Works Officer (Commissioned or Warrant Officer)
  • 4260 Assistant Public Works Officer (Commissioned or Warrant Officer)
  • 4340 Officer in Charge, Naval Construction Battalion Unit (Commissioned or Warrant Officer)
  • 4999 Conversion NEC HT Hull Maintenance Technician Basic (Enlisted)
  • 6199 Conversion NEC UT Utilitiesman Basic (Enlisted)
  • 748B Boiler Repairer Technician (Enlisted)
  • B24A Advanced Utilitiesman (Enlisted)
  • DC Damage Controlman (Enlisted)
  • FCA Fire Controlman (AEGIS) (Enlisted)
  • FC Fire Controlman (Enlisted)
  • HT Hull Maintenance Technician (Enlisted)
  • MMA Machinists Mate, Non-Nuclear, Submarine Auxiliary (Enlisted)
  • MM Machinist's Mate (Enlisted)
  • U52A NAMTS Pipefitter (Enlisted)
  • UT Utilitiesman (Enlisted)

The following military occupations are no longer in active use:

  • 4952 NAMTS Pipefitter (Enlisted)