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 5960-01-433-7565
NSN 6645-01-139-0156
NSN 5930-00-367-3983
NSN 5998-01-168-4055
NSN 5996-01-573-0293
NSN 6610-01-178-0333
NSN 5925-01-634-0664
NSN 6240-01-113-2396
NSN 5985-00-319-4956
NSN 5998-01-159-9689
NSN 6145-01-581-8861
NSN 2925-01-244-3016