I don't know what part this is.

Question

I'm not sure what this part is called but it's from a Certainteed window which was bought by another company.
The number in the part is 86170

Bob · Accepted Answer

Thanks for writing in. This looks like our 15-192 Pivot Shoe is compatible with our Series 170 and Series 171 Coil Springs. The Series 171 is only used if you need to stack a second coil spring atop the first one; otherwise, you can just the Series 170. Look for stamp codes on the coil springs to determine what spring weight if you need. If you're uncertain, weigh your window sash. Give us that exact weight, and we'll work out what you need.