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 5835-00-145-3786
NSN 5920-01-127-0252
NSN 5935-01-094-7357
NSN 5895-01-647-1717
NSN 6610-00-760-4476
NSN 6610-01-061-8466
NSN 5999-00-128-2968
NSN 6240-00-467-7295
NSN 6110-01-478-6454
NSN 5905-01-510-3803
NSN 6130-00-948-6949
NSN 5996-01-412-0813