Anderson casement window operator

A home owner from Bowling Green, OH says:
stamped on the top of the operator are the following 0-9400A-1 Right
it is a double arm unit.
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Casey from SWISCO responded:

Hello,

We can't be sure without seeing photos of your entire operator assembly but you may be looking for the 39-264  split arm Andersen crank. If the specifications match up to your part, please note that windows manufactured from 1995 to 1998 require the 39-362 adapter plate. Take a look and see what you think. 

A home owner from Bowling Green, OH says:
Hope that I have given you enough info with the pic. will need two right and two left operators
Thumbnail of the uploaded file named IMG_0951.jpg
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Casey from SWISCO responded:

Thanks for getting back to us. Your photo does look like a match to the 39-264 but you should compare the dimensions shown on our product page to confirm they match up to yours. Please note that this operator can be used for left or right opening windows. Thanks for posting. 

Connecting a casement window operator to stud bracket
Connecting a casement window operator to stud bracket
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Anatomy of a casement window
Anatomy of a casement window
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