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 6240-00-082-1142
NSN 7035-00-756-4374
NSN 5905-00-270-2946
NSN 5910-01-481-6458
NSN 6105-01-399-8556
NSN 6220-01-486-4188
NSN 5965-01-348-8302
NSN 5998-01-441-8541
NSN 5935-00-765-1238
NSN 5985-01-237-2411
NSN 6130-01-203-1603
NSN 6130-01-597-9854