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 6320-01-317-3663
NSN 5935-01-476-4538
NSN 5925-00-269-2685
NSN 5965-00-220-6900
NSN 5996-01-646-2851
NSN 5965-01-234-6844
NSN 5920-01-336-2259
NSN 2925-01-030-6580
NSN 5985-01-352-8645
NSN 5960-01-495-0834
NSN 5935-01-588-0576
NSN 5920-01-175-8658