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 5965-01-247-0837
NSN 6130-00-128-9697
NSN 5920-01-594-5177
NSN 6110-01-468-5153
NSN 5930-00-075-4105
NSN 6240-00-405-5888
NSN 5999-01-429-1238
NSN 5915-01-533-8556
NSN 6240-01-488-9811
NSN 5925-00-798-3851
NSN 6620-00-609-7213
NSN 6130-00-857-0904