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.
Classification: Butterfly type taps, cocks and valves of iron, hand operated
NSN 2925-01-180-2960
NSN 5915-01-594-9451
NSN 5835-01-246-0972
NSN 5925-00-429-2690
NSN 6220-00-910-9001
NSN 5960-01-411-5899
NSN 5935-01-027-0915
NSN 6220-00-110-6181
NSN 4140-00-669-6109
NSN 5905-01-378-7048
NSN 6685-00-542-6608
NSN 5895-00-054-0732