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 5999-01-280-1438
NSN 5910-01-162-7265
NSN 6130-00-378-9889
NSN 5920-01-123-9854
NSN 6105-01-359-3886
NSN 6220-01-482-6113
NSN 5945-01-448-3235
NSN 5990-00-600-6151
NSN 6130-00-193-2421
NSN 4140-01-575-4887
NSN 6130-01-283-2548
NSN 6150-01-025-3696