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 6130-00-308-2768
NSN 5975-01-508-5077
NSN 5910-00-221-3913
NSN 6650-00-710-8130
NSN 6135-00-767-0331
NSN 5935-01-290-2819
NSN 5950-01-599-9878
NSN 6650-00-195-7519
NSN 6610-01-057-3408
NSN 6150-01-081-5698
NSN 6620-01-616-6008
NSN 5925-01-616-7552