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 6105-01-323-9506
NSN 5985-00-591-3001
NSN 6150-01-067-7107
NSN 5855-01-105-7793
NSN 5945-01-359-9822
NSN 6620-00-165-1749
NSN 4140-01-609-0255
NSN 5905-01-472-6831
NSN 5935-00-028-4139
NSN 6135-00-179-0538
NSN 6610-00-915-3215
NSN 6620-00-726-4849