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 5950-01-567-5967
NSN 5855-01-534-3724
NSN 6220-01-381-1771
NSN 5895-01-542-8736
NSN 5920-01-564-6099
NSN 6620-01-161-1594
NSN 5950-01-270-6677
NSN 6130-00-814-5888
NSN 5835-01-580-0446
NSN 6620-00-707-4195
NSN 5965-01-499-9296
NSN 6220-01-216-5367