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 5999-01-158-5190
NSN 6110-01-162-7200
NSN 4140-01-187-1819
NSN 5925-01-634-0664
NSN 5835-01-069-2359
NSN 5945-00-222-5974
NSN 6320-01-449-1014
NSN 5915-00-053-5530
NSN 2925-01-545-2717
NSN 6240-01-348-0057
NSN 5996-01-445-7547
NSN 5990-01-288-7393