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 6240-00-681-2795
NSN 6620-00-837-9484
NSN 5915-01-447-2498
NSN 5990-01-175-2597
NSN 5835-00-723-2505
NSN 5975-01-380-7175
NSN 6150-01-307-3635
NSN 7035-00-329-4015
NSN 5990-01-660-9694
NSN 5945-01-456-3934
NSN 4140-00-788-2874
NSN 6650-00-872-0942