A valve that controls flow by a circular disk, or a pair of semicircular disks, attached to a common spindle or lever turning on a diametral axis.
NSN 5998-01-392-8979
NSN 5975-01-176-2515
NSN 5930-01-084-4845
NSN 6645-01-308-2260
NSN 2925-01-338-1687
NSN 6645-00-519-1026
NSN 6220-00-701-0677
NSN 5835-01-368-4015
NSN 5999-00-708-4613
NSN 5935-01-108-7411
NSN 6150-00-770-5843
NSN 6620-00-140-8644