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 6320-01-067-0474
NSN 5999-01-559-7553
NSN 5935-01-390-9422
NSN 6650-01-424-0762
NSN 4140-00-283-6843
NSN 6240-00-542-6657
NSN 5990-01-400-3299
NSN 6220-01-223-1441
NSN 5990-01-296-8190
NSN 5990-00-644-3365
NSN 5996-01-242-6634
NSN 6685-01-023-8007