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 5915-00-079-1011
NSN 5996-01-411-1585
NSN 5996-01-181-7057
NSN 5996-01-057-1981
NSN 6130-01-172-8397
NSN 2925-00-275-1807
NSN 5920-00-674-5882
NSN 6130-00-279-5058
NSN 6150-00-730-7859
NSN 5990-00-816-9289
NSN 5985-01-137-9186
NSN 5990-01-345-1468