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 5905-01-296-2166
NSN 5975-01-361-8953
NSN 6610-00-846-4525
NSN 7035-01-149-7502
NSN 6650-00-890-0480
NSN 6610-00-395-2574
NSN 5915-01-450-4240
NSN 6620-01-492-8470
NSN 5920-01-564-1349
NSN 7035-00-267-5424
NSN 5996-00-896-3625
NSN 4140-00-254-7257