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 5935-00-988-8972
NSN 5965-00-043-3463
NSN 5999-00-409-1526
NSN 6130-01-472-5063
NSN 6620-01-168-8450
NSN 6145-01-208-3678
NSN 6610-01-413-2312
NSN 6645-01-505-1691
NSN 5855-01-410-8979
NSN 6320-01-371-3047
NSN 5945-00-189-3114
NSN 5965-01-130-1965