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 5855-01-634-0259
NSN 6645-00-900-5830
NSN 5935-00-974-3820
NSN 5910-00-179-2888
NSN 6110-01-135-7908
NSN 5930-00-707-5696
NSN 5999-01-044-4941
NSN 6110-01-481-3682
NSN 5910-00-410-9783
NSN 5999-01-246-4059
NSN 6110-01-575-0133
NSN 5835-00-665-3395