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 5855-00-058-1293
NSN 6110-01-633-9660
NSN 5965-01-411-4767
NSN 6105-00-797-5007
NSN 6220-01-131-2377
NSN 6135-00-816-9052
NSN 5945-00-187-2822
NSN 5925-01-364-2566
NSN 5930-01-480-9800
NSN 5910-01-427-3819
NSN 6610-00-315-8822
NSN 6150-01-513-1649