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 5895-01-634-0630
NSN 5965-01-335-1687
NSN 5965-00-067-7393
NSN 5975-00-438-5602
NSN 5910-01-590-6237
NSN 5910-01-153-2651
NSN 6620-01-244-3425
NSN 6130-01-274-0194
NSN 5999-00-070-8175
NSN 6150-01-391-5421
NSN 6110-01-462-1698
NSN 5930-01-598-6125