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 5998-01-558-3834
NSN 6130-01-359-6562
NSN 5835-00-012-1846
NSN 5945-01-282-0089
NSN 2925-01-312-9502
NSN 5965-00-393-1294
NSN 6240-00-210-4883
NSN 5910-01-425-1375
NSN 6610-01-408-1134
NSN 5835-00-401-8655
NSN 5915-01-573-5980
NSN 5965-01-534-7152