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 5999-01-371-4750
NSN 6130-00-794-4924
NSN 6150-01-248-1697
NSN 5999-01-504-8201
NSN 6620-00-905-6590
NSN 6645-01-564-7129
NSN 6220-01-090-0126
NSN 5945-00-795-4824
NSN 5965-00-339-0783
NSN 6240-01-521-2921
NSN 5925-01-654-4426
NSN 5965-00-462-6887