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 5998-00-905-6772
NSN 5960-01-285-2152
NSN 5990-01-493-4039
NSN 6685-01-546-4974
NSN 5910-00-892-3187
NSN 5905-01-423-8571
NSN 4140-00-258-3612
NSN 6240-00-313-2515
NSN 6105-00-924-4822
NSN 5920-00-256-9367
NSN 5950-01-400-3587
NSN 6130-01-563-1362