MIL-V-25023B, MILITARY SPECIFICATION: VALVE, FUEL DRAIN, SELF-LOCKING (17-AUG-1967)

MIL-V-25023B, MILITARY SPECIFICATION: VALVE, FUEL DRAIN, SELF-LOCKING (17-AUG-1967)., This specification covers self-locking fuel drain valves suitable for use in aircraft fuel systems. They are intended for use with hydrocarbon fuels only.