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 5996-01-341-0828
NSN 6110-00-553-8816
NSN 5975-00-856-1799
NSN 6220-01-602-7025
NSN 5915-00-064-2229
NSN 7035-01-150-6303
NSN 5915-01-014-6309
NSN 5925-01-274-6987
NSN 6110-01-353-0991
NSN 6650-00-987-3220
NSN 6130-01-400-1385
NSN 6135-00-958-7981