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 6135-01-322-4655
NSN 4140-01-375-8072
NSN 6610-00-935-5190
NSN 5895-01-528-5984
NSN 5915-01-467-4468
NSN 6685-00-501-6501
NSN 5990-01-024-9659
NSN 5915-01-215-2159
NSN 5835-01-132-5894
NSN 5990-01-091-3567
NSN 6110-01-164-0397
NSN 5925-01-659-2278