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 5895-01-525-1260
NSN 5855-01-338-1718
NSN 6150-01-463-3405
NSN 5990-01-414-7618
NSN 5945-00-276-9274
NSN 2925-01-470-5534
NSN 6320-00-004-9158
NSN 5920-00-110-1152
NSN 6135-00-477-8847
NSN 5998-01-535-3531
NSN 5920-00-192-6565
NSN 5965-00-630-7872