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 5835-01-250-2939
NSN 5925-00-186-8669
NSN 6220-00-232-4436
NSN 5996-00-137-6359
NSN 6650-01-050-8680
NSN 6650-01-568-0299
NSN 6150-01-606-7513
NSN 5925-01-414-9210
NSN 5950-01-609-5322
NSN 6320-01-512-2031
NSN 7035-01-501-7259
NSN 5996-01-179-5688