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 6150-01-040-1541
NSN 5915-00-885-0483
NSN 6105-01-075-3765
NSN 6110-01-027-1172
NSN 5999-00-597-5054
NSN 5925-00-156-0680
NSN 5960-01-024-7918
NSN 5835-00-794-7500
NSN 5965-01-380-5875
NSN 4140-00-580-8508
NSN 5960-00-636-4834
NSN 5925-01-207-0910