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 5905-00-453-6072
NSN 6110-00-920-1404
NSN 5975-00-707-6245
NSN 5920-00-149-0013
NSN 4140-01-592-7466
NSN 6650-01-250-1244
NSN 6620-01-146-4680
NSN 5990-01-492-6575
NSN 5930-01-442-5239
NSN 5945-01-265-8589
NSN 6650-01-616-2908
NSN 2925-01-082-7248