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 5935-01-534-9996
NSN 4140-01-425-7955
NSN 5998-00-633-5169
NSN 5965-00-521-9820
NSN 6620-00-825-2227
NSN 5910-01-573-6538
NSN 6620-01-651-5425
NSN 5935-01-276-2150
NSN 5965-01-507-4318
NSN 5835-01-632-6627
NSN 5910-01-386-1152
NSN 5935-00-456-1779