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 5855-01-100-3272
NSN 5910-01-472-4475
NSN 6220-01-049-7204
NSN 6685-01-546-1569
NSN 5960-01-369-3628
NSN 5895-01-557-1065
NSN 5835-01-469-6009
NSN 5960-01-087-2376
NSN 5950-00-278-1201
NSN 5915-01-135-1277
NSN 5835-01-521-4979
NSN 6145-00-982-0860