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 5920-01-070-8843
NSN 6135-01-214-6441
NSN 5945-00-753-9730
NSN 5965-01-463-8176
NSN 5835-00-711-3371
NSN 5920-01-613-0712
NSN 5965-00-507-9675
NSN 6320-01-339-5351
NSN 6220-00-817-7579
NSN 5835-01-391-4556
NSN 7035-00-703-3535
NSN 5985-01-025-9711