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 5910-01-523-2968
NSN 5855-01-417-3250
NSN 5920-01-459-8057
NSN 6645-01-344-8702
NSN 5999-01-209-9224
NSN 6320-01-407-4411
NSN 6145-01-476-0739
NSN 5855-01-273-1971
NSN 5990-01-299-2014
NSN 5999-00-290-1860
NSN 6685-01-607-6481
NSN 5835-01-235-9051