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 5835-01-236-6514
NSN 5935-00-578-3106
NSN 5835-01-307-8954
NSN 5999-00-206-0444
NSN 7035-00-104-7613
NSN 5905-01-463-4325
NSN 6220-01-654-9453
NSN 5998-01-481-4196
NSN 5855-00-138-2386
NSN 5920-01-323-6369
NSN 5935-01-038-4191
NSN 5935-00-078-9540