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 6645-01-306-7376
NSN 5910-01-097-7951
NSN 6105-00-915-1926
NSN 6135-00-938-1351
NSN 5835-01-416-6455
NSN 5998-00-633-5169
NSN 5925-00-571-0415
NSN 6105-01-024-2927
NSN 6220-00-150-0039
NSN 6135-00-906-0984
NSN 6135-00-802-5479
NSN 6645-01-125-6811