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 5835-00-482-0924
NSN 5975-01-435-4899
NSN 5930-01-593-7709
NSN 6105-00-739-7957
NSN 6240-01-153-2861
NSN 6130-01-574-1923
NSN 5998-00-145-2787
NSN 5998-00-052-7753
NSN 6145-01-634-0388
NSN 6150-01-407-7989
NSN 2925-00-782-1498
NSN 5930-01-118-9042