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 6110-01-015-7608
NSN 5935-01-403-2844
NSN 5996-00-179-9583
NSN 5930-01-269-8329
NSN 5915-01-011-6157
NSN 6145-00-227-7576
NSN 6130-01-201-9302
NSN 4140-00-035-4997
NSN 6620-01-526-2857
NSN 5996-01-256-5622
NSN 6320-01-039-5891
NSN 5975-00-673-7658