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 5998-01-093-6703
NSN 5996-01-440-8935
NSN 5996-00-187-1424
NSN 6130-01-164-4344
NSN 6645-01-467-9983
NSN 5998-00-922-4636
NSN 5855-01-516-9915
NSN 4140-01-434-3013
NSN 5960-00-163-6998
NSN 6650-01-124-4314
NSN 5930-00-574-3277
NSN 6610-00-561-4730