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 5999-00-226-7859
NSN 5999-01-559-6287
NSN 5996-01-156-4092
NSN 6135-01-116-3385
NSN 6240-00-538-1416
NSN 5895-00-796-4823
NSN 2925-01-499-4802
NSN 6650-01-496-2662
NSN 5895-01-066-6183
NSN 7035-01-546-6386
NSN 6150-01-331-0975
NSN 6110-01-359-0716