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 4140-01-026-1856
NSN 5835-01-414-3258
NSN 6110-00-248-2942
NSN 4140-01-400-3610
NSN 5915-01-595-2266
NSN 6110-01-027-1501
NSN 5920-01-377-8571
NSN 6650-00-016-3676
NSN 5999-00-909-2475
NSN 6150-01-110-2506
NSN 6620-00-197-5130
NSN 6240-00-617-9599