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 6320-01-436-0513
NSN 6645-00-884-5845
NSN 5960-01-225-1610
NSN 5990-01-296-8190
NSN 6645-00-609-7214
NSN 5975-01-186-4268
NSN 5996-01-386-1279
NSN 5960-01-441-5340
NSN 6620-01-149-9192
NSN 6610-00-435-8932
NSN 5985-01-280-3050
NSN 6220-00-269-8396