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 6685-01-645-5138
NSN 5915-01-463-8144
NSN 5910-00-906-8550
NSN 6150-01-180-2882
NSN 6610-01-030-6462
NSN 5905-01-049-5974
NSN 6105-01-546-0591
NSN 4140-01-369-8734
NSN 6110-01-555-8410
NSN 6145-01-444-1668
NSN 5999-01-062-0739
NSN 6620-00-086-5223