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 2925-00-987-9595
NSN 6145-01-090-3228
NSN 6650-01-576-8520
NSN 5910-01-239-1695
NSN 5990-01-443-2931
NSN 6220-01-599-6183
NSN 5965-01-094-6602
NSN 5990-00-409-3594
NSN 6240-00-146-9322
NSN 5965-01-100-4645
NSN 6650-01-327-3068
NSN 5985-01-151-6580