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 6130-01-270-8600
NSN 5935-01-254-2185
NSN 5985-01-227-2220
NSN 5950-00-256-8143
NSN 6220-01-396-7636
NSN 6135-01-544-2630
NSN 5920-00-834-0138
NSN 5855-01-147-4785
NSN 5965-01-590-2227
NSN 5945-00-907-5765
NSN 6645-00-405-1077
NSN 6150-01-462-4549