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 6220-01-406-5351
NSN 5855-01-349-2055
NSN 5895-01-168-7964
NSN 5930-01-211-4831
NSN 5930-01-027-1026
NSN 6105-01-441-2751
NSN 5855-01-619-9426
NSN 5975-01-167-8598
NSN 6320-01-255-2096
NSN 5950-01-362-4006
NSN 6105-01-109-6256
NSN 6220-00-583-3442