Do I need 15-192?

Hello! I do not think this is the 15-192, no. See our 15-175 instead, this looks like a closer match. You should just go over our dimensions first before you buy anything. That way you can be 100% sure.

I actually do not recognize this clip. Can you tell me what its relation is to the pivot shoe? Maybe if I can see the two together?

I'm still not sure the 15-192 will match. The face of your shoe looks identical to the 15-175. If you say that the dimensions are the same as the 15-192, then that might be bad news. I have seen an older version of the 15-175 that is way, way thicker than the original. Just about as thick as the 15-192, as a matter of fact. They haven't made that thicker shoe in years though.

We've experimented with a few different substitutes for that, including the 15-192, and had mixed results. Some customers told us it didn't work, others told us they could get it functional with adaptation, though nobody has ever gone into more detail than that. If you do have what I think you have, then I cannot be sure our hardware will work for you. 

Oh, I see. This appears to be some kind of tamper lock. I'm afraid we don't have anything like this, though, at least not one compatible with the 15-175. I'm actually not sure these are even necessary for your hardware to function, I think they just help keep the pivot bar in, which isn't really that big of a deal once the window is operating.