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 6240-01-100-7105
NSN 5915-01-422-4620
NSN 6650-01-118-8984
NSN 5935-00-737-4925
NSN 6220-01-076-4383
NSN 6110-00-800-9978
NSN 5996-00-868-2543
NSN 4140-01-395-2039
NSN 5975-00-556-9743
NSN 5945-00-411-5498
NSN 7035-00-421-8710
NSN 6220-00-976-3390