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 5835-01-083-3741
NSN 5835-00-453-1969
NSN 6610-01-495-8898
NSN 5999-01-642-2338
NSN 5920-01-456-2803
NSN 5935-01-174-9459
NSN 5855-00-610-4052
NSN 5855-01-540-7413
NSN 5950-01-260-1328
NSN 5895-01-565-6293
NSN 6145-01-581-1780
NSN 4140-01-308-3656