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 6220-01-310-5706
NSN 6145-01-133-2332
NSN 5920-01-138-4984
NSN 5998-00-596-9568
NSN 5998-00-248-4964
NSN 5930-01-571-7906
NSN 5965-00-905-6895
NSN 5855-00-167-7893
NSN 5930-01-144-8024
NSN 5965-01-537-0023
NSN 6650-00-251-2324
NSN 6110-01-529-6503