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 5915-01-441-2238
NSN 5915-01-488-6624
NSN 5930-01-196-6137
NSN 5835-01-357-9235
NSN 6110-00-530-3779
NSN 5910-00-565-0028
NSN 5975-01-143-9396
NSN 5960-01-224-8022
NSN 6650-00-324-4973
NSN 5950-00-521-9412
NSN 5960-01-313-0681
NSN 6650-00-404-4400