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 2925-01-335-4549
NSN 6220-00-546-1836
NSN 6240-00-854-1962
NSN 5835-01-608-8868
NSN 5965-00-144-2543
NSN 5998-01-646-0386
NSN 5935-01-344-3894
NSN 5905-01-231-9626
NSN 5910-00-425-3854
NSN 5925-01-322-7930
NSN 5965-01-581-8489
NSN 6150-00-727-4627