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 5935-00-716-9009
NSN 5835-01-487-3042
NSN 7035-01-521-6177
NSN 5965-01-241-0553
NSN 5985-00-946-2163
NSN 7035-00-111-4389
NSN 5925-00-942-8202
NSN 5915-01-079-1450
NSN 5925-01-625-5713
NSN 6685-01-310-2212
NSN 5920-01-104-4332
NSN 5965-01-218-5003