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 6220-01-418-1649
NSN 5960-01-023-8037
NSN 5915-00-294-9419
NSN 6110-01-459-5480
NSN 6105-01-634-0322
NSN 6240-01-529-8452
NSN 6105-01-571-5862
NSN 5935-01-369-4718
NSN 4140-01-479-2644
NSN 5910-01-403-2812
NSN 6240-00-057-9498
NSN 5930-00-889-8605