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 5975-00-596-2119
NSN 5835-01-455-3380
NSN 5960-01-461-1384
NSN 6105-01-016-1803
NSN 5910-01-443-0105
NSN 6130-00-728-9621
NSN 6145-00-727-1770
NSN 6650-01-203-8263
NSN 6105-01-370-5779
NSN 7035-01-316-7860
NSN 5990-01-649-0635
NSN 5895-00-305-2307