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 2925-01-091-4734
NSN 6620-01-353-6675
NSN 5910-01-540-3990
NSN 5996-01-068-4761
NSN 5920-00-873-9514
NSN 6130-01-514-2304
NSN 5999-01-479-0742
NSN 5915-00-816-9056
NSN 6645-00-825-5677
NSN 5920-01-293-5982
NSN 5999-01-167-8884
NSN 6610-01-379-6750