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 6145-01-300-2983
NSN 5835-01-460-6054
NSN 5996-01-517-1004
NSN 5895-01-303-5770
NSN 5990-01-317-5743
NSN 5935-00-285-2767
NSN 5910-01-501-5069
NSN 5996-00-804-2698
NSN 5930-01-267-9337
NSN 5945-01-593-6251
NSN 6220-00-911-0318
NSN 5996-00-402-6071