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 5910-01-092-2582
NSN 5960-01-155-6839
NSN 2925-01-657-9741
NSN 7035-01-395-7851
NSN 6150-00-235-6293
NSN 5960-01-426-4242
NSN 5996-01-600-0348
NSN 6110-01-224-2097
NSN 5975-01-557-8024
NSN 5920-00-807-8774
NSN 5835-00-148-9719
NSN 5960-01-284-4118