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 5975-01-417-3522
NSN 5930-01-018-7063
NSN 5985-01-384-3847
NSN 5935-01-309-2185
NSN 5960-01-013-9346
NSN 5950-00-508-8038
NSN 5996-00-012-8639
NSN 6645-01-283-3181
NSN 6105-01-319-3189
NSN 6610-00-451-8840
NSN 5925-00-458-6647
NSN 5990-01-012-0613