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 5835-01-013-9321
NSN 6620-01-633-8443
NSN 6240-01-200-7937
NSN 6220-00-227-0528
NSN 4140-00-200-9082
NSN 5960-00-333-0702
NSN 6240-01-096-0573
NSN 5975-01-281-2592
NSN 6220-01-175-1246
NSN 6650-01-422-7055
NSN 5935-01-188-6371
NSN 6110-00-565-5986