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 5905-00-490-0119
NSN 2925-01-532-8445
NSN 6685-00-152-7146
NSN 6240-00-368-8541
NSN 5935-01-245-4851
NSN 6135-00-087-5300
NSN 6610-01-517-1901
NSN 6240-01-133-5950
NSN 5996-01-437-6227
NSN 5895-01-029-6225
NSN 5975-01-626-0705
NSN 5996-01-435-5547