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 5990-01-209-3955
NSN 2925-01-424-0235
NSN 6620-00-461-4934
NSN 5999-00-192-9394
NSN 5855-01-604-9997
NSN 5925-00-403-4061
NSN 7035-00-238-3662
NSN 5925-00-034-1293
NSN 5998-00-932-5589
NSN 5960-01-657-5958
NSN 5925-01-142-5819
NSN 6620-00-430-5727