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 5950-01-352-6881
NSN 5996-00-098-3864
NSN 5965-01-437-7148
NSN 5998-00-212-4406
NSN 6685-01-235-0924
NSN 5835-00-435-6638
NSN 5905-01-019-8863
NSN 5999-00-471-4583
NSN 5975-01-290-2817
NSN 6150-01-516-5130
NSN 6110-01-322-8378
NSN 5905-00-635-7438