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 7035-00-055-9778
NSN 5965-01-553-8579
NSN 5996-01-374-3452
NSN 5835-01-553-6772
NSN 6645-01-303-5855
NSN 5999-00-917-9316
NSN 6320-01-569-2672
NSN 5905-01-386-5846
NSN 5999-01-590-0808
NSN 6610-01-211-8956
NSN 6135-00-948-7061
NSN 5935-00-294-3330