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 6135-01-180-9611
NSN 5998-00-149-0726
NSN 5945-01-582-4506
NSN 6145-00-985-8348
NSN 5996-00-937-3813
NSN 5960-01-317-3800
NSN 6650-01-142-6438
NSN 6150-01-172-1375
NSN 6150-01-538-5550
NSN 5835-00-927-6013
NSN 6220-00-954-0442
NSN 5975-01-426-8968