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 6610-01-304-3226
NSN 6110-01-581-9812
NSN 5835-00-469-3395
NSN 6240-01-338-6045
NSN 6645-00-925-3857
NSN 4140-01-620-1260
NSN 6650-00-034-8438
NSN 5975-01-561-4342
NSN 5935-01-432-2486
NSN 5855-01-647-8382
NSN 5975-01-196-5842
NSN 5925-01-012-3624