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 7035-01-104-5446
NSN 5975-00-776-4604
NSN 5835-01-327-0770
NSN 5950-01-660-7639
NSN 4140-01-089-0465
NSN 6620-01-323-6091
NSN 5905-00-233-6407
NSN 5950-01-422-2924
NSN 6150-00-862-1081
NSN 5915-01-421-1818
NSN 6240-00-948-0119
NSN 6220-01-426-3485