Please help me find this window crank

A contractor from methuen, ma says:

I have uploaded a picture of the window cranck i need, on the longer metal piece of it has the following number 30866.
User submitted a photo of a window operator.
Profile picture of Dave Sr.
Dave Sr. from SWISCO responded:
Hey thanks for posting. How about our part number 39-187? This appears similar. Compare the measurements and let us know if they differ in any way.
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