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 4140-01-607-1962
NSN 5835-01-062-6258
NSN 5935-00-420-8572
NSN 6110-01-481-5091
NSN 5895-01-521-2460
NSN 6220-01-349-3629
NSN 4140-00-185-9694
NSN 6610-01-445-4304
NSN 7035-00-003-7518
NSN 6620-00-257-2783
NSN 5935-01-210-6360
NSN 6650-00-011-3435