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 5996-00-005-0222
NSN 5895-00-021-3539
NSN 5920-00-108-5399
NSN 6145-00-427-7201
NSN 6685-01-436-2337
NSN 6105-01-541-9947
NSN 6110-01-506-8722
NSN 7035-00-946-2642
NSN 5998-01-152-7879
NSN 5960-00-525-1898
NSN 6320-01-453-2358
NSN 6110-01-520-4065