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 5998-00-170-6756
NSN 2925-01-054-3190
NSN 6610-01-074-6654
NSN 5920-01-591-4908
NSN 6240-01-518-6843
NSN 5855-00-688-9954
NSN 5930-00-155-8119
NSN 6320-01-365-2701
NSN 5905-01-541-9219
NSN 5945-01-500-1904
NSN 6620-00-409-4975
NSN 4140-00-365-2531