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 5905-01-099-3000
NSN 5905-01-389-9796
NSN 4140-01-386-5630
NSN 6130-01-180-9727
NSN 6650-01-447-7962
NSN 5965-01-437-5934
NSN 5985-01-399-8452
NSN 5895-00-937-4999
NSN 6610-01-462-3508
NSN 6610-01-125-4821
NSN 6150-00-007-8884
NSN 5930-01-350-2285