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 6320-00-977-3930
NSN 5945-01-179-3761
NSN 5895-00-807-4405
NSN 5935-01-646-0307
NSN 5920-00-227-6179
NSN 5945-01-392-0898
NSN 5985-00-037-9853
NSN 6620-00-351-9949
NSN 5996-01-369-9209
NSN 5835-01-299-5055
NSN 5915-01-020-9153
NSN 6650-01-221-0034