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 6650-01-077-5174
NSN 6220-00-274-8541
NSN 5910-01-155-3133
NSN 6145-01-463-2843
NSN 5935-01-451-6998
NSN 6620-01-205-0320
NSN 6320-01-281-6028
NSN 5960-01-141-6489
NSN 6650-01-392-8020
NSN 5999-01-360-4742
NSN 2925-01-264-5256
NSN 6320-01-512-2031