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 5935-00-337-6963
NSN 5905-01-546-1723
NSN 4140-00-802-2968
NSN 5910-00-200-1413
NSN 5855-01-414-6265
NSN 5855-01-441-3189
NSN 7035-01-155-9025
NSN 5920-01-305-5318
NSN 5920-01-117-6258
NSN 5895-01-070-3945
NSN 5990-01-414-7618
NSN 5930-01-661-2187