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 5855-00-151-3853
NSN 5985-00-245-0240
NSN 5998-00-516-8964
NSN 6645-01-393-5128
NSN 6645-01-399-1626
NSN 5996-00-677-5332
NSN 5975-00-886-8200
NSN 5999-01-544-5535
NSN 5965-01-322-8136
NSN 6135-01-546-3260
NSN 4140-00-900-1816
NSN 5910-00-703-0897