6610-00-979-6842 (G13-20BA)
6610-00-979-6842 is equivalent to manufacture part number G13-20B. It is a shaft coupling and is classified under Federal Supply Class 6610 (6610 - Flight Instruments), stocked for defense, aerospace, MRO, and industrial maintenance applications. This item is cataloged in the NATO supply system under 6610 - Flight Instruments and is available through NSN-PARTS for U.S. government MRO, and commercial procurement.