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 5975-01-511-5265
NSN 5935-01-468-5866
NSN 5960-01-228-1215
NSN 5920-01-423-5078
NSN 5925-01-510-4579
NSN 5915-01-397-9978
NSN 5930-01-625-2232
NSN 6320-01-176-8367
NSN 6220-00-935-1460
NSN 5930-00-062-5658
NSN 6220-00-702-0002
NSN 6650-00-146-6485