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 5905-01-130-9669
NSN 5910-00-961-6241
NSN 6150-00-990-2490
NSN 5960-01-448-3497
NSN 5935-00-928-2208
NSN 5990-01-282-0570
NSN 6105-01-504-3940
NSN 6130-01-442-3796
NSN 6240-01-225-4671
NSN 6610-01-424-0776
NSN 5945-01-522-1518
NSN 5998-01-449-4944