A valve permitting flow in one direction only. It does not have a stem, except when equipped with a lever and weight and has no pressure adjustment. It may be inline or cartridge (manifold) design.
NSN 5965-01-238-3900
NSN 5835-01-340-7722
NSN 5935-01-051-6060
NSN 6105-00-143-7283
NSN 5915-00-644-5735
NSN 5935-01-415-1527
NSN 5999-01-024-8905
NSN 5950-01-518-4307
NSN 5990-01-432-0523
NSN 5996-00-446-3784
NSN 5975-00-649-6939
NSN 2925-01-391-9247