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 5996-01-543-5009
NSN 5930-01-438-5894
NSN 5990-00-042-3413
NSN 5835-00-481-4203
NSN 6610-01-519-3080
NSN 6130-01-139-7401
NSN 6240-01-496-5066
NSN 6150-00-583-6094
NSN 6105-01-629-8696
NSN 4140-00-144-6833
NSN 6130-01-219-9941
NSN 6150-00-509-0791