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 6150-01-612-7038
NSN 5999-01-025-9717
NSN 6220-01-015-4767
NSN 6105-01-421-3193
NSN 5930-00-398-7477
NSN 6110-01-055-6442
NSN 5905-01-528-9522
NSN 5999-00-183-7687
NSN 6105-00-604-5384
NSN 5905-01-069-3419
NSN 5920-01-165-5187
NSN 2925-01-519-3221