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 6110-01-497-5827
NSN 6610-00-508-1728
NSN 5985-00-925-4161
NSN 5999-01-367-0496
NSN 5975-01-163-8806
NSN 5835-01-104-1299
NSN 6135-01-432-6201
NSN 5935-00-022-5703
NSN 5998-00-456-4717
NSN 5925-01-586-0232
NSN 5950-00-926-0760
NSN 5855-00-532-0025