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 5915-00-985-5053
NSN 6135-00-269-5843
NSN 6135-01-265-1384
NSN 6620-01-334-5815
NSN 5925-00-222-8263
NSN 6150-01-156-8518
NSN 5855-01-447-4097
NSN 5965-01-454-8076
NSN 5855-01-534-2428
NSN 6685-01-186-0401
NSN 5975-01-401-5355
NSN 5965-01-527-5981