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 6220-00-542-4898
NSN 5925-01-087-4315
NSN 5855-00-918-1622
NSN 2925-01-024-2662
NSN 5960-01-609-6565
NSN 2925-01-607-4340
NSN 6135-00-125-5265
NSN 5915-01-389-8302
NSN 6130-01-406-5353
NSN 5996-01-193-7529
NSN 2925-01-502-9903
NSN 5999-00-274-6294