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 6610-01-552-7158
NSN 5895-01-509-4149
NSN 5930-00-908-2289
NSN 5935-01-026-3292
NSN 5998-00-104-5985
NSN 5935-00-170-4487
NSN 5910-01-185-0190
NSN 6105-00-982-4723
NSN 5985-00-683-2188
NSN 6645-00-494-3065
NSN 6240-00-563-5846
NSN 5895-01-188-1542