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 5998-00-673-8570
NSN 6610-01-352-5500
NSN 6130-00-528-1266
NSN 5930-01-534-7458
NSN 6135-01-196-7399
NSN 5999-00-814-2526
NSN 5985-01-449-2511
NSN 5855-00-055-1579
NSN 5935-00-661-0825
NSN 6320-01-519-8767
NSN 5905-01-551-1724
NSN 5960-00-682-9554