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 6610-00-070-7257
NSN 5835-01-485-0210
NSN 6105-00-728-8612
NSN 5960-01-351-5074
NSN 6135-00-377-9165
NSN 5990-01-369-2764
NSN 6320-01-253-9585
NSN 5998-01-282-2018
NSN 2925-00-234-0479
NSN 5835-01-116-2369
NSN 6650-00-534-5191
NSN 5945-00-779-0528