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 5905-01-499-8129
NSN 5855-00-149-0766
NSN 2925-00-246-3077
NSN 5925-01-162-4002
NSN 5920-01-234-5914
NSN 6685-00-308-2518
NSN 2925-00-394-2332
NSN 6105-01-044-4123
NSN 5910-00-916-5831
NSN 6135-01-140-8201
NSN 6110-00-504-2441
NSN 6220-01-452-6394