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 5996-01-459-8014
NSN 5835-01-080-7784
NSN 5835-00-242-3763
NSN 6685-01-058-1179
NSN 6610-01-234-5542
NSN 5998-01-033-7199
NSN 5996-00-732-2552
NSN 6135-00-448-5642
NSN 5895-00-215-3775
NSN 6620-01-606-8964
NSN 6130-01-087-0514
NSN 5999-00-213-6491