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 5998-00-420-4275
NSN 5915-01-323-8112
NSN 6650-00-125-6560
NSN 5960-01-292-6062
NSN 5998-01-227-7690
NSN 6110-00-257-1446
NSN 5895-01-336-2885
NSN 5965-01-103-5133
NSN 6645-00-766-7935
NSN 5855-00-151-3853
NSN 6610-01-335-3185
NSN 5935-01-391-0485