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 6110-01-287-8438
NSN 5996-01-056-4952
NSN 7035-01-441-0942
NSN 5920-01-051-0090
NSN 6130-01-509-8571
NSN 5998-00-244-1835
NSN 5915-01-323-7154
NSN 5855-01-285-3483
NSN 6320-01-384-7079
NSN 7035-01-155-9025
NSN 6145-00-983-5179
NSN 5945-00-917-0501