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 5998-00-676-1270
NSN 5935-00-199-5410
NSN 5960-01-526-3843
NSN 5950-01-012-2968
NSN 5925-01-226-5942
NSN 5990-01-122-5629
NSN 5960-01-331-3817
NSN 6620-01-357-5045
NSN 4140-00-587-7496
NSN 5945-00-882-8433
NSN 6150-01-617-4695
NSN 5998-00-143-0485