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 6240-01-232-8079
NSN 5965-01-282-6085
NSN 5935-00-389-7160
NSN 4140-00-390-5822
NSN 5985-00-868-3228
NSN 5925-01-634-0664
NSN 5999-00-664-1818
NSN 5960-01-364-1318
NSN 5855-00-763-2155
NSN 5945-01-234-8056
NSN 6135-01-464-2075
NSN 6320-01-459-6992