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 5935-01-521-3143
NSN 6240-01-255-5080
NSN 7035-00-312-3055
NSN 6645-00-258-8547
NSN 5920-00-372-5864
NSN 6130-01-082-9124
NSN 6685-01-174-6955
NSN 5895-00-164-2726
NSN 6110-01-472-1963
NSN 6685-01-104-1782
NSN 5935-00-131-9994
NSN 6110-00-518-2998