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 6240-01-356-2934
NSN 4140-01-327-3241
NSN 5960-01-613-6132
NSN 6685-00-495-4540
NSN 4140-01-309-5961
NSN 7035-00-421-8710
NSN 5935-00-389-7160
NSN 5999-00-740-8259
NSN 6220-01-597-2599
NSN 5905-00-272-3476
NSN 6135-00-643-4843
NSN 5945-01-600-2191