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 5855-00-548-4742
NSN 5930-01-467-1254
NSN 5925-01-559-0018
NSN 6610-01-495-0596
NSN 6135-00-628-1142
NSN 6240-01-188-7282
NSN 6620-01-030-9460
NSN 5935-01-489-6183
NSN 6650-01-122-6734
NSN 5945-01-633-1886
NSN 5910-01-228-6320
NSN 2925-01-351-9748