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The SCHLAGE 09-997 service kit converts any Schlage modular mortise cylinder into 1-3/4" length. Contains one B520-727 back housing, two B520-693 housing screws, one B590-299 plug extension, and one B520-692 cam screw. Works with SCH-L583-447, SCH-L583-475 and SCH-L583-477 cams.
This service kit includes the necessary components to convert a Schlage modular mortise cylinder to 1-3/4" length.
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