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 6130-00-995-9095
NSN 6685-01-149-2784
NSN 5990-00-351-5479
NSN 4140-01-110-7590
NSN 5935-01-327-1553
NSN 5965-01-358-1279
NSN 5960-00-658-7209
NSN 4140-01-068-0140
NSN 6620-00-382-8827
NSN 5999-01-394-2366
NSN 5985-01-386-1605
NSN 6220-00-471-4011