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 5965-01-374-2376
NSN 6685-01-593-7715
NSN 2925-00-111-4097
NSN 6145-01-464-3380
NSN 5999-01-187-8828
NSN 5985-01-227-4812
NSN 6220-00-087-0284
NSN 5990-01-552-5386
NSN 6130-01-333-6858
NSN 5910-01-354-3204
NSN 6145-00-539-9799
NSN 5990-00-642-9930