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 5960-01-614-8005
NSN 5998-01-467-8210
NSN 5895-00-263-3982
NSN 5925-01-141-6688
NSN 5965-01-285-2133
NSN 6135-01-433-2062
NSN 5998-01-146-4367
NSN 5920-00-717-6839
NSN 5985-00-467-1838
NSN 6650-00-323-8150
NSN 7035-00-283-3112
NSN 6320-00-483-0451