Andersen casement window crank handle

A quick learner from Cherry Hill, NJ says:
This is an Andersen casement window crank; the underside has the number 7191 and also a 3. I think it has 12 teeth.
The condo was built around 1978.
Thank you for any help you can provide in replacing this part.
Thumbnail of the uploaded file named Andersen Casement window crank 7191.jpg
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Casey from SWISCO responded:

Hello,

If the spline diameter is 3/8" then you can use our 39-267 Andersen handle. Take a look and see how the specifications comapre. Thanks for posting!

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