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 2925-00-977-3311
NSN 5996-01-325-1664
NSN 5915-00-597-0038
NSN 6220-01-062-9782
NSN 6685-01-085-2496
NSN 6220-01-618-4225
NSN 5835-01-614-1900
NSN 5935-01-316-1982
NSN 6620-01-081-1042
NSN 6145-00-628-7088
NSN 6610-01-642-9557
NSN 5975-00-221-7175