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 5965-01-649-1279
NSN 5930-01-371-2084
NSN 7035-01-462-2953
NSN 5915-01-368-5150
NSN 5895-01-625-6347
NSN 5950-01-063-7181
NSN 6320-01-451-0821
NSN 6145-01-367-1404
NSN 6620-01-649-7511
NSN 5990-01-442-3520
NSN 5935-00-405-1326
NSN 5945-01-533-0215