Spirals, pivot blocks, and felt

Hello! You have a very old style pivot shoe here. I don't believe an exact match is made anymore, but you should be able to use our 15-015 as a replacement. Just make sure that the dimensions all match up before you buy anything.

Dimensions for 15-015

You also mention window felt, but I don't see that in your photos. We do sell a wide selection, which you can see here. Your next step should be to carefully measure your original part and check to see if we carry that size in our inventory.