need this part

That looks to be a channel balance shoe of some kind, but it is too damaged to ID. Do you have an undamaged version I can look at? I will also need to know its size, especially the overall width, to ensure that we can get you something that will fit in the track.

I'm thinking it'll be something like our 15-195 or 15-194, but I'll have to see it in good condition to know for sure. There are a lot of other possibilities, too.

I'm afraid this isn't what I asked for. As mentioned in my prior response, I need a clear picture of the pivot shoe in undamaged condition, as well as its size. Without that information, I will not be able to make a recommendation.