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 5925-01-495-8081
NSN 6240-01-620-7401
NSN 5905-01-344-0609
NSN 6650-00-087-6428
NSN 5985-01-218-7725
NSN 6240-00-753-7586
NSN 4140-01-396-0115
NSN 6240-00-542-6657
NSN 7035-01-376-3843
NSN 6610-01-090-5908
NSN 6620-00-257-2783
NSN 6105-01-080-5934