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 7035-01-411-6062
NSN 6220-01-089-7185
NSN 5915-01-161-1119
NSN 5945-01-424-8775
NSN 5910-01-442-3647
NSN 5950-01-120-9344
NSN 5999-01-127-0665
NSN 5996-01-029-2904
NSN 2925-01-113-6904
NSN 5960-01-552-0862
NSN 5990-00-444-9993
NSN 6610-01-367-5110