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 6320-01-341-9126
NSN 5985-01-371-2188
NSN 6135-00-782-6988
NSN 6240-01-563-5578
NSN 5960-01-393-9461
NSN 5910-01-123-2612
NSN 5855-00-483-0020
NSN 5960-01-454-7064
NSN 6135-01-583-6344
NSN 6220-01-005-2134
NSN 5905-01-587-7002
NSN 6645-01-075-7722