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 5945-01-092-6087
NSN 5960-00-229-5121
NSN 6135-00-947-0406
NSN 5910-00-755-9748
NSN 6610-00-912-5039
NSN 6610-01-529-8529
NSN 6650-01-508-7817
NSN 5915-01-038-0048
NSN 5935-01-388-2066
NSN 5930-00-203-5594
NSN 5999-00-080-2117
NSN 6650-00-782-4624