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 steel
NSN 5945-01-365-1639
NSN 5925-01-248-9250
NSN 6610-01-523-2100
NSN 5998-00-160-5050
NSN 6620-00-500-0041
NSN 6240-01-502-2530
NSN 4140-01-599-8434
NSN 6220-01-307-7360
NSN 4140-01-238-1373
NSN 5930-01-608-5301
NSN 6620-01-485-0556
NSN 6240-01-591-2467