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 5910-01-515-0338
NSN 6685-01-039-6411
NSN 5905-01-377-1137
NSN 5920-01-537-0684
NSN 2925-01-100-3694
NSN 2925-01-106-8871
NSN 6645-01-169-9054
NSN 6105-01-088-8133
NSN 5895-01-469-1832
NSN 6105-01-039-5488
NSN 5920-01-510-2137
NSN 6620-01-212-8089