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 6130-00-929-1516
NSN 5965-00-351-7460
NSN 6110-01-587-2038
NSN 5905-01-116-9373
NSN 6110-01-495-4216
NSN 5905-00-767-0286
NSN 6650-00-432-9263
NSN 6650-00-078-5773
NSN 5999-01-503-2918
NSN 6110-01-068-4998
NSN 6650-01-532-6966
NSN 5855-01-250-2421