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 5990-01-627-8097
NSN 6150-01-565-8540
NSN 2925-01-331-5039
NSN 5960-00-421-1054
NSN 2925-00-221-8529
NSN 2925-01-604-8984
NSN 5910-01-346-0771
NSN 6320-01-519-8767
NSN 6220-01-443-1899
NSN 5930-01-406-2999
NSN 5835-00-583-1316
NSN 5960-01-423-4240