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 5895-01-254-2749
NSN 5960-01-241-1844
NSN 6150-01-319-1941
NSN 6240-00-802-8811
NSN 6685-01-424-8046
NSN 6145-01-089-9879
NSN 5915-01-090-0478
NSN 6220-01-612-2461
NSN 6685-01-622-3022
NSN 7035-00-941-4949
NSN 6645-01-532-9027
NSN 5945-01-479-5228