Control and valve installers and repairers perform work familiar to some military personnel.

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

003781
Propulsion Plant Mechanical Operator (Enlisted)
4540
NAMTS Valve Repair Technician (Enlisted)

The following military occupations are no longer in active use:

4513
Automatic Combustion Control (General Regulator) Maintenanceman (Enlisted)