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 6240-01-488-3094
NSN 4140-01-344-7135
NSN 6220-01-604-3308
NSN 5998-00-421-4347
NSN 5965-01-176-1556
NSN 6105-01-544-4802
NSN 6150-00-972-5229
NSN 5930-01-076-4696
NSN 6650-01-104-6139
NSN 5895-01-058-5584
NSN 5905-00-231-3968
NSN 6645-01-087-7345