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 6685-01-634-0611
NSN 5965-01-269-1960
NSN 6240-01-534-5829
NSN 6620-00-155-2608
NSN 5855-00-405-4532
NSN 6105-01-313-3835
NSN 5990-00-799-2796
NSN 5945-01-433-8049
NSN 2925-01-146-0278
NSN 5855-00-466-2309
NSN 6685-01-358-2885
NSN 5930-01-084-1492