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 5950-01-643-2126
NSN 5945-01-126-5820
NSN 4140-00-449-1356
NSN 6220-01-373-1397
NSN 7035-01-194-9482
NSN 5905-01-248-9765
NSN 4140-00-245-2715
NSN 5835-00-466-8544
NSN 5950-01-473-9352
NSN 5930-01-075-4642
NSN 5985-01-036-2214
NSN 5965-01-633-8849