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 5920-00-291-1379
NSN 5905-00-626-5407
NSN 5930-01-521-3753
NSN 6150-01-206-3532
NSN 5935-01-052-3057
NSN 6645-00-144-4868
NSN 5990-00-649-7088
NSN 5945-01-444-0971
NSN 6240-01-422-3461
NSN 6610-00-670-7801
NSN 4140-00-872-6316
NSN 5920-01-422-3695