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 5895-00-773-2926
NSN 4140-01-036-7178
NSN 5915-01-649-7946
NSN 5965-01-551-7393
NSN 6150-00-269-8447
NSN 5975-01-327-3254
NSN 5965-01-315-0373
NSN 5905-01-026-3772
NSN 5895-00-082-0364
NSN 5985-00-436-2640
NSN 5935-01-480-7381
NSN 6105-01-360-6793