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 5999-01-100-0921
NSN 5910-01-237-6851
NSN 6320-00-831-2227
NSN 5895-01-477-9225
NSN 4140-01-281-1615
NSN 5910-01-322-4904
NSN 6240-01-075-1693
NSN 6110-01-510-2538
NSN 5895-00-700-4622
NSN 6620-01-304-8055
NSN 5985-00-419-0342
NSN 6610-00-881-5060