The valve is inserted through the backside of the wheel and clamped from the front with a nut and washer
A metal, or metal and rubber, tubular stem containing a valve core and cap. The mounting end may have a base with a fitting designed for mounting on a pneumatic tire, inner tube, or tire rim, to permit and retain inflation or permit deflation. The mounting end may be internally threaded for adaptability to a valve spud or may be provided with cure-on or clamp in features. The other end is externally threaded to accommodate a valve cap, and internally threaded to accommodate the valve core.
Dept. of the Army 
Dept. of the Air Force 
U.s. Marine Corps 
Dept. of the Navy 
U.s. Postal Service - Procurement and Supplies Dept. Classification: Other taps, cocks, valves, etc., nesoi
NSN 6145-01-479-8135
NSN 4140-00-317-5014
NSN 5990-01-354-1366
NSN 5975-01-248-6261
NSN 6650-01-554-2824
NSN 5996-00-539-7956
NSN 5996-01-549-3032
NSN 5925-00-204-7494
NSN 5835-00-572-7445
NSN 6150-01-576-0365
NSN 7035-00-408-8170
NSN 6110-01-230-9357