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 7035-01-522-5597
NSN 5915-00-185-5355
NSN 5996-00-683-5176
NSN 5915-01-310-7357
NSN 5915-00-456-0243
NSN 5999-01-126-2195
NSN 5975-01-299-4496
NSN 5996-01-178-7734
NSN 5835-01-389-8218
NSN 6685-01-484-6560
NSN 6240-01-367-9626
NSN 5915-01-600-1058