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 6320-00-082-5868
NSN 5835-01-138-8622
NSN 5975-01-643-8091
NSN 5925-01-249-9066
NSN 5998-01-413-2475
NSN 6110-01-393-3696
NSN 6645-00-435-5610
NSN 6110-01-469-6326
NSN 5905-01-044-3967
NSN 4140-00-517-7902
NSN 6105-00-186-0161
NSN 7035-00-541-8516