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 5985-01-382-9979
NSN 6110-01-096-2271
NSN 5895-01-287-2102
NSN 5935-01-203-9384
NSN 6135-01-542-5902
NSN 6145-00-753-2264
NSN 5915-00-027-7665
NSN 5930-01-063-9045
NSN 5935-01-550-0614
NSN 6650-01-355-0075
NSN 5835-01-466-5496
NSN 6130-01-391-9754