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 5985-01-544-9594
NSN 6105-01-556-4228
NSN 7035-01-248-8596
NSN 5985-00-775-6684
NSN 5895-01-574-0430
NSN 6220-01-322-5660
NSN 6220-01-553-3160
NSN 5925-01-469-6667
NSN 6610-00-340-2430
NSN 5960-01-420-4744
NSN 5960-01-560-8461
NSN 5985-00-079-2748