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 6620-01-180-5855
NSN 6620-01-451-3742
NSN 5915-01-423-4642
NSN 5905-01-583-5780
NSN 6620-01-062-1662
NSN 5930-00-489-7832
NSN 5910-00-548-3843
NSN 5998-01-159-6524
NSN 6645-01-322-0697
NSN 6105-01-192-9892
NSN 5895-01-395-2357
NSN 6130-01-468-5727