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 6130-00-871-8090
NSN 5925-01-100-8474
NSN 6320-00-194-4252
NSN 2925-00-795-4064
NSN 6685-01-660-4910
NSN 7035-00-849-5526
NSN 6320-01-006-6138
NSN 5990-01-100-1840
NSN 6650-00-197-7563
NSN 6240-01-633-9357
NSN 5835-01-199-5902
NSN 6610-01-200-6861