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 5960-00-801-7431
NSN 7035-01-420-3238
NSN 6105-01-062-2256
NSN 5990-01-322-9781
NSN 5910-01-164-8527
NSN 4140-01-171-0785
NSN 6645-01-588-5591
NSN 5965-00-160-0138
NSN 5999-01-488-4326
NSN 5895-00-637-2658
NSN 5905-00-051-9228
NSN 6135-01-200-5144