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 6110-00-597-8072
NSN 6650-01-184-9238
NSN 6135-00-990-1822
NSN 6240-01-505-5890
NSN 5895-00-132-6847
NSN 2925-00-428-6349
NSN 2925-01-407-4958
NSN 5935-01-387-4261
NSN 5996-00-400-3352
NSN 5920-01-462-4910
NSN 5965-00-391-0562
NSN 4140-01-648-4791