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 6130-01-147-3300
NSN 6135-01-142-2417
NSN 5905-00-626-3754
NSN 5905-01-080-8926
NSN 5996-00-589-9943
NSN 6130-01-254-1548
NSN 6610-00-225-9886
NSN 5930-01-503-4279
NSN 5996-00-456-1903
NSN 5960-00-051-6159
NSN 5905-01-432-4226
NSN 5915-00-270-1076