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 6610-01-387-7517
NSN 6620-00-532-2068
NSN 5960-00-346-7902
NSN 5950-00-194-3048
NSN 5935-01-310-8616
NSN 6620-01-495-7446
NSN 6685-01-229-7048
NSN 6240-01-004-2032
NSN 6645-00-439-4087
NSN 4140-00-104-7323
NSN 6645-01-400-2119
NSN 5915-01-385-2904