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 6130-01-237-1621
NSN 6150-00-707-3950
NSN 5910-01-464-7665
NSN 5945-01-146-4529
NSN 6135-00-491-9864
NSN 7035-01-077-6041
NSN 6220-00-943-8323
NSN 6620-01-121-4019
NSN 6610-00-195-7517
NSN 5930-00-510-7647
NSN 6320-01-466-4175
NSN 5985-01-620-0263