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 5975-01-168-0647
NSN 4140-01-152-2672
NSN 5965-01-609-4021
NSN 6220-01-148-9021
NSN 5990-01-588-3999
NSN 6610-01-310-0553
NSN 5998-01-126-4492
NSN 6645-01-102-2321
NSN 5915-01-524-9296
NSN 5998-01-115-7157
NSN 5915-00-952-5658
NSN 5930-01-643-9670