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 5965-00-234-7338
NSN 6145-01-633-7437
NSN 6240-01-126-6816
NSN 5855-00-532-0025
NSN 5910-01-557-4271
NSN 5930-00-277-4704
NSN 5998-01-004-4753
NSN 5855-00-832-9341
NSN 5855-01-092-7755
NSN 5965-00-187-5523
NSN 6145-00-689-4215
NSN 6650-01-364-1313