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 6220-01-528-9438
NSN 5965-00-971-5522
NSN 5960-01-127-5425
NSN 6320-00-186-6452
NSN 6130-00-420-1181
NSN 5895-01-295-6377
NSN 6110-00-496-8731
NSN 5835-00-912-5656
NSN 5935-01-500-1374
NSN 5975-01-530-6677
NSN 4140-01-068-3500
NSN 5999-01-350-4446