Need parts number

Hi Paul, thank you for posting,

We do not carry this exact pivot shoe, but we recommend reviewing the 15-199 17/32" thick shoe as a potential replacement option. Confirm the dimensions below to confirm a good fit! 

Alternate view of 15-199

If the shoe matches, it is used with either the 1/2" thick S160 coil spring or the 3/8" thick S165 coil springs. To further review, please confirm the thickness of the original coil spring and weight of the window sash. Thank you!