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 5985-01-521-2625
NSN 5950-01-450-3343
NSN 5965-01-234-6844
NSN 6320-01-195-5583
NSN 5915-01-116-2932
NSN 6650-01-508-8939
NSN 5925-00-115-8114
NSN 5935-00-310-1514
NSN 6105-01-199-1796
NSN 6130-01-433-2918
NSN 6685-00-531-7120
NSN 5945-00-540-8178