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 5920-00-816-7535
NSN 6620-01-587-1088
NSN 5965-00-362-2158
NSN 5910-01-105-3035
NSN 5945-01-287-3892
NSN 5925-01-179-4774
NSN 2925-01-425-7087
NSN 6220-00-269-4556
NSN 6610-00-621-8532
NSN 6610-01-364-8295
NSN 6650-00-839-2527
NSN 6130-01-361-5171