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 5990-00-739-7811
NSN 6685-00-872-6345
NSN 5935-01-458-0965
NSN 5960-01-192-7710
NSN 6150-00-869-7086
NSN 5965-00-015-7408
NSN 6610-00-756-7906
NSN 4140-00-431-0424
NSN 7035-00-096-9986
NSN 5945-01-544-5321
NSN 5999-01-267-5508
NSN 5975-01-046-3658