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 6220-00-728-4559
NSN 6150-01-377-2620
NSN 6685-00-761-0711
NSN 5990-01-168-6797
NSN 5935-01-160-2926
NSN 5935-00-840-5485
NSN 5895-01-258-5352
NSN 5999-01-540-2010
NSN 5895-00-212-7451
NSN 6110-00-727-1377
NSN 5920-01-492-6512
NSN 5935-00-597-5055