1640-00-565-4290 (MIL-DTL-8878)
1640-00-565-4290 is equivalent to manufacture part number 21251-A6S. It is a turnbuckle body and is classified under Federal Supply Class 1640 (1640 - Aircraft Control Cable Products), stocked for defense, aerospace, MRO, and industrial maintenance applications. This item is cataloged in the NATO supply system under 1640 - Aircraft Control Cable Products and is available through NSN-PARTS for U.S. government MRO, and commercial procurement.