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 6685-00-451-6941
NSN 5915-00-342-9261
NSN 5930-00-405-2371
NSN 6620-01-038-5801
NSN 6645-00-814-1706
NSN 5999-00-818-3060
NSN 5985-01-276-8134
NSN 5998-01-411-6218
NSN 5895-01-083-5200
NSN 6105-01-253-1691
NSN 6130-01-060-9505
NSN 5985-00-907-1499