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 6110-00-054-2527
NSN 4140-00-707-5963
NSN 5905-01-039-7517
NSN 6105-00-128-1890
NSN 6145-00-625-0714
NSN 7035-01-377-6255
NSN 6135-00-299-6918
NSN 5950-01-498-1762
NSN 5985-01-459-8441
NSN 5835-00-518-4507
NSN 6685-00-086-9798
NSN 6685-01-274-3891