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 5935-00-850-7304
NSN 5910-00-202-1056
NSN 5835-01-359-2575
NSN 6150-01-442-7622
NSN 5985-01-234-1884
NSN 6105-01-213-3479
NSN 5895-00-205-0620
NSN 5930-01-607-6463
NSN 5945-00-956-9148
NSN 6135-01-327-2092
NSN 5905-01-025-9756
NSN 6110-01-238-5772