Need keyed lock for American Craftsman 50 series sliding door

A quick learner from Mechanicsburg, PA says:
Hello. I need a keyed lock for a American Craftsman 50 series sliding door. Please tell me what I need to do to order this. Door label and mortise handle with sliding lock photo attached. Thank you!
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Thumbnail of the uploaded file named IMG_4912.jpg
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Emily from SWISCO responded:

Hi there!

If your handle's hole center spacing is 3-15/16", you can use our 82-030 along with the 82-310 key lock that can be adapted to the outside pull. You can view our blog article here for more information on the process. Have a look at our specifications and see what you think. 

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