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 5920-00-853-4893
NSN 5999-00-543-0472
NSN 6240-00-344-8582
NSN 5935-00-171-3129
NSN 6105-01-634-0322
NSN 6145-01-253-9898
NSN 6110-01-448-6348
NSN 6145-01-577-6243
NSN 6240-00-708-2083
NSN 6320-01-578-6006
NSN 5999-01-063-4838
NSN 6685-01-278-6951