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 5960-01-030-3191
NSN 5910-01-026-5822
NSN 5945-01-449-7633
NSN 5990-00-767-0893
NSN 6650-00-840-9758
NSN 5895-01-374-7957
NSN 5835-00-378-1429
NSN 5950-01-519-8947
NSN 6105-00-511-0766
NSN 6150-00-356-0530
NSN 5975-00-276-7559
NSN 6105-00-367-1984