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 6110-01-503-9595
NSN 6650-01-233-3578
NSN 4140-00-983-8048
NSN 5910-00-314-3852
NSN 5985-01-451-1436
NSN 5915-01-044-5260
NSN 5855-01-235-5491
NSN 6650-01-562-0096
NSN 6130-00-765-5685
NSN 6220-01-020-7873
NSN 6610-00-695-2280
NSN 5945-00-414-3356