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 6650-00-254-9807
NSN 5998-01-201-2181
NSN 7035-01-068-3300
NSN 6610-01-300-4537
NSN 6240-01-510-7298
NSN 5999-01-290-4850
NSN 6240-01-118-2561
NSN 6620-00-838-6954
NSN 7035-00-371-7749
NSN 5950-00-964-9810
NSN 5998-00-004-1468
NSN 6135-01-091-6021