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 2925-01-180-7793
NSN 5985-00-716-6888
NSN 5960-01-506-5854
NSN 7035-01-381-5411
NSN 6110-00-161-4115
NSN 5990-01-554-8547
NSN 6105-00-628-3907
NSN 6650-01-371-2356
NSN 5935-01-384-9783
NSN 6110-01-167-8906
NSN 6610-01-066-4664
NSN 6110-01-255-6523