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 5855-01-180-5369
NSN 5925-01-612-8995
NSN 6105-01-319-3984
NSN 5895-01-105-9264
NSN 5855-00-916-2236
NSN 5935-00-903-8078
NSN 6130-01-325-5518
NSN 6240-00-518-3541
NSN 6320-01-582-6752
NSN 7035-00-329-4015
NSN 6610-01-050-2072
NSN 5935-01-070-5621