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 5960-00-153-7115
NSN 5835-00-192-9568
NSN 6645-00-539-1705
NSN 5960-01-522-0391
NSN 6105-01-411-5970
NSN 6620-01-546-4942
NSN 5855-01-532-7513
NSN 6150-01-113-4368
NSN 5999-00-422-5384
NSN 6130-00-170-4062
NSN 5998-01-493-3358
NSN 6650-01-364-8504