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 5996-01-357-8475
NSN 6620-01-494-9858
NSN 6135-01-461-2915
NSN 2925-01-314-4612
NSN 5895-00-292-2872
NSN 5930-01-634-0659
NSN 6320-01-054-3046
NSN 6105-01-627-1071
NSN 4140-01-378-6710
NSN 6130-00-446-6922
NSN 5999-00-009-6659
NSN 6610-01-354-7963