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 5920-01-203-3915
NSN 6105-01-263-3989
NSN 5930-00-360-6533
NSN 5965-00-402-4042
NSN 5985-01-003-2993
NSN 6620-00-431-3837
NSN 6135-00-862-5736
NSN 7035-01-334-5855
NSN 2925-01-067-4446
NSN 5985-00-332-8758
NSN 5935-01-304-5888
NSN 5975-00-906-6299