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 6645-01-063-8243
NSN 5835-00-155-1379
NSN 5999-01-428-9275
NSN 5855-01-657-7657
NSN 6130-01-634-0603
NSN 6650-01-619-9986
NSN 4140-00-215-8593
NSN 6240-00-160-9223
NSN 7035-00-150-2379
NSN 5935-00-239-9637
NSN 5950-00-894-5343
NSN 5855-00-337-3679