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 6650-01-143-4586
NSN 5925-00-489-8625
NSN 6105-01-413-4713
NSN 5965-01-341-8746
NSN 5915-01-650-4915
NSN 4140-00-168-1920
NSN 5935-01-210-1784
NSN 6610-00-290-0758
NSN 6320-00-476-6898
NSN 5998-01-261-6711
NSN 6150-00-189-0292
NSN 5930-01-182-6725