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 5990-01-090-3232
NSN 5905-01-647-1650
NSN 6650-01-399-8552
NSN 6650-00-590-9073
NSN 2925-00-496-9082
NSN 6620-00-826-7238
NSN 5910-01-605-9524
NSN 5895-00-173-7881
NSN 6650-00-020-2368
NSN 6610-01-485-3074
NSN 5935-00-850-5232
NSN 6135-01-568-9107