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 5998-00-224-5439
NSN 5930-00-461-5492
NSN 5930-01-331-2226
NSN 5996-00-851-5802
NSN 5920-01-486-3826
NSN 6105-01-370-1994
NSN 5935-00-153-4420
NSN 5945-01-422-5394
NSN 5920-01-249-7616
NSN 6645-01-357-9096
NSN 6620-01-112-6440
NSN 5945-00-686-1534