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 5999-00-297-6710
NSN 6220-01-634-0660
NSN 6130-01-044-9437
NSN 5930-01-212-9907
NSN 5975-01-181-9093
NSN 5935-01-274-0288
NSN 5895-00-680-9784
NSN 5965-01-360-0454
NSN 2925-00-607-4663
NSN 5945-00-930-3105
NSN 6650-01-399-0628
NSN 6105-01-070-8625