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 5990-00-822-9269
NSN 5935-01-044-4888
NSN 5990-01-632-0969
NSN 4140-01-430-2335
NSN 6320-01-056-1164
NSN 6650-01-553-1853
NSN 6685-00-884-3885
NSN 6150-01-613-0988
NSN 7035-00-096-9986
NSN 5996-01-391-9585
NSN 6130-00-364-7801
NSN 6620-00-278-7313