The N105E and N111E will both fit this cartridge, but are nearly impossible to find now. There are non-Shure substitutes, but no genuine Shures left.

After a lot of studying of the replacement charts it seemed to me that since the N97xE (in current production) would replace the N94E, and the N94E could interchange with the N92E, both could be upgraded with the N104E, which was replaced with the N105E, etc... well, it only seemed logical that the N97xE would work.

Ordered one, plugged it into my RXT6 cartridge, and have been listening to it this afternoon. I went back and forth between a new N111E (last one from Garage-a-Records) and the N97xE, and I absolutely can't tell the difference.

So, it looks like the N97xE will work in place of the N111E, N111HE, N105E, N104E, as well as N92E and N94E.