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 5998-01-234-8094
NSN 6685-00-701-1753
NSN 5835-01-495-5986
NSN 5945-01-577-2614
NSN 5985-01-491-9679
NSN 6130-00-445-5129
NSN 4140-01-550-8908
NSN 5990-00-495-2859
NSN 6620-01-481-1358
NSN 6620-01-367-2597
NSN 6135-00-577-8429
NSN 5960-01-196-9203