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 6610-00-724-1005
NSN 5935-00-922-5520
NSN 5998-01-584-0751
NSN 5998-01-206-3426
NSN 6105-00-596-6107
NSN 5835-01-013-0956
NSN 5998-01-631-4187
NSN 6620-00-113-4530
NSN 5935-00-554-4124
NSN 2925-01-011-5619
NSN 5915-01-329-1762
NSN 6240-00-851-4352