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 5999-00-854-3080
NSN 5910-01-079-5164
NSN 5950-00-051-8283
NSN 6135-01-222-0703
NSN 6135-01-441-0518
NSN 6220-01-347-3578
NSN 5935-00-228-0026
NSN 6685-01-547-6466
NSN 2925-01-088-9016
NSN 5985-01-484-4220
NSN 5910-00-829-2394
NSN 5895-00-847-7798