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 5935-00-035-4559
NSN 5998-01-352-1317
NSN 7035-00-541-8516
NSN 5945-00-105-0084
NSN 5855-01-317-5354
NSN 5950-01-375-2432
NSN 6105-00-969-4644
NSN 5930-01-607-3252
NSN 6240-01-621-2774
NSN 5960-00-968-7582
NSN 6135-01-589-0333
NSN 6145-01-495-1410