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 5960-00-044-1883
NSN 5965-00-194-9875
NSN 5920-00-970-4818
NSN 6110-00-987-3675
NSN 5855-01-434-2825
NSN 6610-00-725-1444
NSN 5985-00-784-1832
NSN 5930-01-310-6089
NSN 5996-01-631-2874
NSN 6130-00-133-1598
NSN 6620-01-178-7838
NSN 5935-00-107-1977