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 6610-01-013-8922
NSN 5915-00-057-8787
NSN 4140-00-376-5712
NSN 5895-01-397-5869
NSN 6145-01-408-7156
NSN 5996-00-770-1863
NSN 5960-01-089-8155
NSN 6620-00-364-4604
NSN 5855-01-304-3064
NSN 5835-00-821-8555
NSN 5975-01-501-7672
NSN 6650-01-477-2124