MW Casement Window Crank from 1980s

A quick learner from North Carolina. says:
Good Morning:

Attached please find photographs of a broken window crank. The only identify marks are the numbers on the window hinge and MW on the plastic crank cover. The end of the spiral crank has broken off and I cannot close the window with the crank.
User submitted photos of a window operator.
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Tom from SWISCO responded:
Thanks for posting! Yeah, it looks like your bore stripped out. There are a couple replacement operators that come to mind right away, but I'd first like you to tell me the dimension of the link arm. That would be the short little arm that is stamped with "20755." Let me know!
A handy person from North Carolina says:
The link arm is 3.75" long.
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Tom from SWISCO responded:
Great! In that case, check out our 39-155 & 39-156 and see if you can use these as replacements.
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