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 5930-00-292-1089
NSN 7035-00-585-2113
NSN 5935-01-503-2100
NSN 6135-01-116-3385
NSN 7035-00-206-6123
NSN 5965-01-188-8530
NSN 5999-00-698-7103
NSN 5975-01-184-9382
NSN 5920-01-300-6055
NSN 6620-00-983-4171
NSN 5855-01-068-3683
NSN 6150-01-237-1736