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 5965-01-453-7504
NSN 5895-00-691-1716
NSN 6110-00-462-9698
NSN 5905-00-360-5058
NSN 6240-00-456-2578
NSN 5960-01-134-4099
NSN 5930-01-318-5154
NSN 5930-01-244-8668
NSN 5895-00-948-6426
NSN 6620-01-333-2513
NSN 5998-01-054-3713
NSN 6645-00-221-1058