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 6150-01-266-9490
NSN 5895-01-393-0585
NSN 6130-01-247-1917
NSN 6650-01-433-8101
NSN 5925-01-516-1150
NSN 2925-01-389-6874
NSN 6220-00-862-6216
NSN 6645-01-408-6568
NSN 6645-01-141-4425
NSN 5910-00-615-0355
NSN 5895-00-253-0799
NSN 5945-01-065-4405