Replacement crank

A contractor from Kannapolis NC says:
I have looked through your selection and am not sure what the best fit will be for me. The spacing on the mounting holes top to bottom is 5 1/4, top side to side is 1/2, and bottom side to side is 1 1/4. The arm is 2 5/8. I have seen some that are close on the mounting holes but with a shorter arm so your help would be appreciated.
User submitted photos of a window operator.
Profile picture of Dave Sr.
Dave Sr. from SWISCO responded:
Take a look at our 39-017 Pan Am operator. This could be the one you need to repair your window, but check it out and let me know if you agree.
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