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 5855-01-513-9601
NSN 5910-01-416-2123
NSN 5835-01-631-3940
NSN 5985-00-221-1563
NSN 5930-01-180-9766
NSN 5965-01-642-7214
NSN 5975-01-120-5220
NSN 5920-00-378-1395
NSN 6320-01-249-3236
NSN 5915-00-114-2661
NSN 6150-01-552-6572
NSN 6130-01-293-4650