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 5990-00-832-9766
NSN 6645-01-252-8870
NSN 6130-00-317-3054
NSN 6220-01-445-0050
NSN 6685-01-450-3285
NSN 6105-01-057-7040
NSN 6105-00-516-2151
NSN 6110-01-273-0223
NSN 6320-01-454-1965
NSN 6650-01-565-9448
NSN 5998-01-565-0420
NSN 6145-01-225-3929