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 6145-01-523-0056
NSN 6130-00-929-6699
NSN 6650-01-043-4221
NSN 6240-00-777-1878
NSN 5965-00-224-6034
NSN 5835-01-642-4705
NSN 6130-01-213-4816
NSN 6685-01-238-3790
NSN 5998-00-026-7762
NSN 5990-01-416-6009
NSN 5925-00-137-6582
NSN 5835-01-105-6545