Andersone casement crank assembly

A home owner from Massachusetts says:
Hello, I need to replace the worn down hand crank, and the cover that goes over the crank assembly. I don't think I need the entire assembly, and I believe the spindle itself is still OK, it just the crank is worn down.
Any help much appreciated.
The number on the hand crank looks like: 9456-2C, with a #4 on the opposite side.
The numbers on the cover place looks like:
1351443 WH
1351444 ST
4513
patent no DES 360,357
tks
Paul
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Emily from SWISCO responded:

Hi, Paul.

Thank you for your patience during this busy season. We'd be happy to help but we'd like to see a photo of your operator with the window open so that the arms that move the sash are fully visible. Once we can identify the operator, we can determine which handles are compatible with your assembly.

Thank you! 

A home owner from Massachusetts says:
OK, here are 2 more photos, I hope this helps.
tks
Paul
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Emily from SWISCO responded:

Thanks for the additional pictures, Paul! This is a huge help. It looks like you might have our 39-264 Andersen split arm crank, which uses the 39-152 cover and 39-286 handle. Compare our dimensions to yours and see if these match what you need. 

A home owner from Massachusetts says:
Hi,
the crank you show looks much smaller than the one I have.
The depth I have is 2 7/8", not the 1 3/4" that you showed me.
However, the current crank arm I have IS too big, it has been scratching the wood frame, so I think someone put in the wrong size.
thoughts?
tks
paul
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Emily from SWISCO responded:

Is your spline 3/8"? If so, the 39-286 should be fine. 

A home owner from Massachusetts says:
yes, it is 3/8" I believe.
Thank you so much!
Paul
any problems I'll f/up
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Emily from SWISCO responded:

No problem, Paul! We'll be here if you have any questions. 

39-264 : Andersen Split Arm Crank
Andersen Split Arm Crank
39-264
$26.48
VIEW >
39-152 : Andersen Classic Operator Cover
Andersen Classic Operator Cover
39-152
$5.62
VIEW >
39-286 : Casement Window Handle, fits Andersen
Casement Window Handle, fits Andersen
39-286
$6.10
VIEW >
Connecting a casement window operator to stud bracket
Connecting a casement window operator to stud bracket
VIDEO
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Anatomy of a casement window
Anatomy of a casement window
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