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 5999-01-188-8316
NSN 5895-01-395-2689
NSN 5990-01-023-3307
NSN 5998-01-202-7905
NSN 6130-00-513-3565
NSN 5930-01-105-5512
NSN 6130-01-098-5226
NSN 6145-01-561-2266
NSN 6645-01-320-4138
NSN 5910-01-265-4689
NSN 6135-00-161-0746
NSN 6220-01-566-1152