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.
Classification: Check valves of copper having a pressure rating of 850 kpa or over
NSN 6610-01-633-8931
NSN 6320-00-483-0451
NSN 6610-00-106-3401
NSN 5990-01-486-2556
NSN 6220-00-870-9967
NSN 5998-01-015-4179
NSN 5990-00-186-2445
NSN 5935-01-449-1341
NSN 5930-01-398-8547
NSN 6650-00-066-4999
NSN 4140-00-954-3690
NSN 5930-01-173-5873