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 7035-01-520-6610
NSN 5999-01-266-7920
NSN 6105-01-126-2771
NSN 6240-01-229-5712
NSN 5835-00-513-9680
NSN 5935-01-213-9112
NSN 2925-01-616-3037
NSN 2925-01-244-3016
NSN 6135-00-255-1340
NSN 5935-00-071-2494
NSN 5998-01-153-2689
NSN 6130-00-202-4688