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 5915-01-431-6951
NSN 5965-00-342-5126
NSN 5855-01-544-1482
NSN 6320-00-731-6134
NSN 5920-00-012-2000
NSN 6135-01-033-5052
NSN 5835-01-440-5391
NSN 5925-00-561-0677
NSN 5910-00-103-7692
NSN 6610-01-392-8030
NSN 5910-01-063-7096
NSN 5915-01-429-3077