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 2925-01-163-6716
NSN 6240-01-397-8713
NSN 6145-01-576-9609
NSN 6150-00-839-3344
NSN 5985-01-158-7231
NSN 6105-00-997-0194
NSN 7035-00-946-2642
NSN 2925-01-364-7926
NSN 5895-01-398-1057
NSN 5910-00-286-4416
NSN 5985-01-427-3734
NSN 5965-01-175-9133