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 6645-01-021-5727
NSN 6150-00-308-2686
NSN 6110-01-385-5650
NSN 5999-01-416-6416
NSN 6150-00-968-6188
NSN 6320-01-476-7702
NSN 6645-01-171-3242
NSN 6105-00-392-0605
NSN 6110-01-119-3949
NSN 6105-01-323-1812
NSN 5999-01-317-8699
NSN 5855-00-167-7893