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 5960-00-916-1071
NSN 5960-01-369-8666
NSN 5835-00-130-6404
NSN 5985-01-233-8600
NSN 5999-00-788-2883
NSN 5905-00-515-3594
NSN 5930-00-776-1916
NSN 6620-00-555-3992
NSN 5835-01-081-9345
NSN 6110-01-085-2899
NSN 6650-01-565-1471
NSN 4140-01-374-4673