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 5965-01-241-0553
NSN 6150-01-315-7507
NSN 5985-00-513-3420
NSN 5985-00-856-6663
NSN 6685-00-959-1335
NSN 6620-00-618-9311
NSN 5910-01-418-9192
NSN 6620-01-233-7466
NSN 5915-01-294-6584
NSN 5965-00-513-1352
NSN 6220-01-006-4481
NSN 6135-00-134-6648