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 5915-01-015-1983
NSN 6650-00-227-8743
NSN 6645-01-196-8616
NSN 5905-01-263-4940
NSN 5905-01-412-5152
NSN 6130-00-228-6297
NSN 5835-01-362-8367
NSN 5960-01-422-3269
NSN 6110-01-113-4287
NSN 6645-00-173-2800
NSN 6220-00-443-1693
NSN 6220-01-358-9975