Window replacement hardware

Thanks for reaching out to us. I couldn't cross-reference this number to a particular window operator, unfortunately. Would it be possible for us to see a photo of your operator with the window open so that the arms that move the sash are fully visible? That's the best way to narrow down some options. 

Thank you for the photos, Linda! Our 39-381 appears to be our closest match. The link arm is 6-1/2" when measured as shown below. See how the specifications compare with your old operator. 

Note, the 39-381 lacks the offset that your old operator has on its link arm. This discrepancy may or may not be an issue--we've had customers have success and failure in this situation in the past, so I can't make any guarantees. You could try installing them to see if they work as is; if not, you could see if you can reposition the stud bracket on the sill to make up the difference. Let me know if you have further questions. 

Alternate image for 39-381