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 5915-00-420-1557
NSN 6110-00-112-8796
NSN 6150-01-581-7562
NSN 7035-01-434-6134
NSN 6645-01-449-1824
NSN 6320-01-455-3394
NSN 5945-01-293-8157
NSN 6135-01-454-2894
NSN 5965-01-495-6455
NSN 5915-01-211-9745
NSN 6135-00-808-5093
NSN 6130-01-608-4371