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 5960-01-174-6975
NSN 5935-00-978-6736
NSN 2925-00-753-8598
NSN 5920-00-813-6015
NSN 2925-01-336-8019
NSN 5950-00-012-4910
NSN 5950-01-098-9875
NSN 5835-01-459-7428
NSN 6135-00-422-3967
NSN 6610-00-500-6944
NSN 6105-01-156-0167
NSN 5910-01-352-6700