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 5930-00-759-8421
NSN 5945-01-429-8942
NSN 5920-00-466-3950
NSN 5915-01-083-0837
NSN 5935-01-093-8632
NSN 6130-01-604-6791
NSN 6320-01-527-0211
NSN 5925-00-767-0284
NSN 6610-00-199-5357
NSN 6645-01-444-3016
NSN 6240-01-463-8276
NSN 5950-01-268-1573