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 5895-00-400-0230
NSN 6105-01-448-9380
NSN 6620-01-451-3742
NSN 5905-01-528-9209
NSN 6320-00-456-0836
NSN 5895-01-582-5789
NSN 6130-00-960-9158
NSN 6610-01-461-8180
NSN 5910-00-082-1791
NSN 6145-01-256-8225
NSN 6685-00-070-0738
NSN 6240-01-438-6448