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 6110-01-276-9423
NSN 6220-00-438-2177
NSN 5960-00-726-0580
NSN 6220-01-504-8519
NSN 5945-01-595-2197
NSN 5945-01-548-0933
NSN 5910-01-046-0585
NSN 5905-01-305-7549
NSN 5935-01-422-4938
NSN 4140-01-290-1733
NSN 5920-01-546-9014
NSN 5999-00-165-3698