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 6320-00-845-3261
NSN 5996-01-211-3562
NSN 5998-01-267-6132
NSN 6650-00-355-8920
NSN 6110-00-346-7958
NSN 5920-00-758-1348
NSN 6135-01-120-9812
NSN 5925-01-038-7029
NSN 6150-00-797-9533
NSN 5935-00-721-4155
NSN 5965-01-122-7477
NSN 5975-00-902-6550