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 5985-01-494-5202
NSN 5985-00-431-6789
NSN 5835-01-515-6537
NSN 6685-00-145-8902
NSN 5945-00-436-2211
NSN 5935-01-395-7631
NSN 4140-01-328-3958
NSN 5855-01-630-4299
NSN 5975-01-659-4181
NSN 6110-00-675-0101
NSN 5855-00-221-9435
NSN 5998-01-575-6425