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 6240-01-472-2950
NSN 6135-01-591-4181
NSN 5920-00-081-0230
NSN 5945-01-483-3606
NSN 5905-01-400-0963
NSN 6620-01-655-7664
NSN 6610-01-611-4646
NSN 5996-01-442-3676
NSN 6685-01-476-0766
NSN 5965-01-050-1020
NSN 5930-01-537-7000
NSN 7035-01-325-0536