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 5998-01-428-9545
NSN 5925-01-454-8693
NSN 5935-01-080-0050
NSN 2925-01-547-4565
NSN 6150-00-756-7941
NSN 6130-01-369-8678
NSN 2925-00-560-8106
NSN 6110-00-635-6023
NSN 5975-01-225-6338
NSN 5975-01-543-9023
NSN 5935-00-565-9131
NSN 5975-00-221-2555