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 5935-00-520-3638
NSN 6610-01-445-6362
NSN 5999-01-195-9948
NSN 6240-00-793-7969
NSN 5835-01-090-0784
NSN 5855-01-507-9742
NSN 6240-00-781-9899
NSN 5998-01-519-9129
NSN 6645-00-527-7258
NSN 5930-00-430-9767
NSN 5975-00-611-3174
NSN 6610-01-349-6333