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 6135-01-022-5427
NSN 6610-01-278-9704
NSN 6105-01-357-9080
NSN 6650-01-012-3290
NSN 5835-01-013-9321
NSN 5920-01-203-3915
NSN 2925-01-417-6815
NSN 4140-01-549-0975
NSN 5925-01-609-9826
NSN 5855-01-480-3194
NSN 5835-00-113-6090
NSN 6645-00-559-3623