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 5835-01-084-5742
NSN 2925-00-019-9649
NSN 5920-01-649-8214
NSN 5905-01-519-6459
NSN 5998-01-473-3168
NSN 6650-00-674-1240
NSN 5998-00-240-0019
NSN 6220-01-417-3450
NSN 5960-01-467-7516
NSN 5910-01-649-2202
NSN 5905-01-576-6249
NSN 5895-01-152-2895