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 7035-01-325-0536
NSN 6650-01-555-4370
NSN 5920-00-040-2923
NSN 4140-01-004-9177
NSN 6135-01-074-8220
NSN 5996-00-448-1245
NSN 5965-01-503-1617
NSN 6110-01-146-4857
NSN 6220-00-631-1734
NSN 5999-00-467-6714
NSN 5920-01-046-5235
NSN 6145-00-702-4621