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 6320-01-332-7020
NSN 5960-01-573-6483
NSN 4140-01-508-5454
NSN 6645-01-445-5235
NSN 6110-00-560-6990
NSN 5895-01-112-9000
NSN 6610-01-072-0018
NSN 6620-01-431-9176
NSN 6645-00-200-2324
NSN 6620-01-228-1571
NSN 5835-00-400-5056
NSN 5998-00-890-5562