Valve size 3 in.; disc is free to rotate to avoid localized wear
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 5950-01-387-5189
NSN 5905-01-547-4660
NSN 5905-01-250-4956
NSN 6220-00-006-4158
NSN 5895-01-284-7753
NSN 6150-01-337-7950
NSN 7035-00-703-3535
NSN 5996-01-219-1850
NSN 5996-01-450-3790
NSN 6645-01-160-7707
NSN 6240-00-646-6931
NSN 6610-01-351-4607