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 7035-01-038-9970
NSN 6150-01-463-3951
NSN 7035-00-870-0290
NSN 2925-01-122-7812
NSN 6320-00-405-2348
NSN 5975-01-315-6378
NSN 6130-00-808-7842
NSN 5998-01-444-2883
NSN 6145-01-196-0496
NSN 4140-01-006-1264
NSN 5945-00-737-0633
NSN 6150-00-647-3285