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 5965-01-580-8049
NSN 5905-01-259-4767
NSN 6130-00-705-4959
NSN 6240-01-436-4649
NSN 4140-01-261-2966
NSN 6650-01-365-1894
NSN 6110-01-118-0783
NSN 6610-00-677-1728
NSN 6145-01-514-6639
NSN 5950-01-623-0457
NSN 5910-01-556-8008
NSN 6240-01-344-9933