12K Plumber

Army MOS 12K is a plumber who performs plumbing and pipe fitting activities on military installations and in the field.

Their duties include: Installing and repairing pipe systems and plumbing fixtures Installing water supply and distribution systems Preventive maintenance on water supply systems Installing and maintaining heating systems Installing waste water pipe systems Connecting pipe sections using valves, couplings, reducers, and other fittings

Army buildings and equipment all require pipe systems for water, steam, gas, and waste. Army plumbers are responsible for installing and repairing these systems.

The 12 Series MOS is a list of occupations under the Army Corps of Engineers.