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 5999-00-467-6714
NSN 6645-01-076-4655
NSN 5920-01-020-0059
NSN 6105-01-310-3401
NSN 5965-01-504-2340
NSN 5930-01-399-4527
NSN 6240-00-470-7625
NSN 6610-00-866-7333
NSN 6220-01-461-2499
NSN 6150-01-223-7292
NSN 6610-01-615-3095
NSN 6150-01-209-0834