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 6220-01-309-4895
NSN 5905-01-526-0626
NSN 6105-01-634-0322
NSN 6240-01-328-5179
NSN 5905-01-632-7987
NSN 6610-00-018-1416
NSN 5945-00-813-8700
NSN 5965-00-734-5053
NSN 5965-01-130-1965
NSN 6150-00-943-6286
NSN 6105-00-906-8101
NSN 6135-01-290-1594