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 4140-01-447-4342
NSN 6610-01-369-7306
NSN 5990-00-491-1338
NSN 5990-00-277-3763
NSN 5945-00-005-4423
NSN 5935-01-531-0328
NSN 5910-01-315-4894
NSN 6220-01-332-7793
NSN 6150-00-398-6527
NSN 5895-00-108-8474
NSN 5910-01-606-1437
NSN 6645-01-546-0491