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 5835-01-063-6284
NSN 6650-00-518-5194
NSN 5998-01-430-2773
NSN 5915-01-327-2795
NSN 2925-01-599-1901
NSN 5895-00-325-1737
NSN 6685-00-957-0716
NSN 5895-00-424-4789
NSN 5920-01-212-9908
NSN 5945-01-543-0522
NSN 5855-00-256-5562
NSN 6320-01-029-4220