CT2882-2-10 (BKCT2882-2-10-ND) from Cal Test Electronics is discontinued, while they do have replacement in 1768-CT2882A-2-10-ND listed, I noticed it has some specifications changes, namely in the jacket type and wire stranding.
If you desperately need something that is a 1:1 equivalent to the original wire, we still have part number BKCT2882-9-10-ND available. The catch is that this is white vs the original red color, but if the material specifications are more important to you it’s worth remembering that this option is out there.