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 5996-01-094-7025
NSN 6240-01-003-8666
NSN 5935-01-126-8855
NSN 5960-00-235-9124
NSN 5855-00-763-2155
NSN 5945-01-634-0588
NSN 5985-01-281-7333
NSN 6220-01-020-8018
NSN 6130-01-386-5933
NSN 6220-00-141-6150
NSN 5915-00-835-9413
NSN 6645-00-429-0172