Question:
Hey IDN, how can I tell the difference between Schlage’s ND Lock from previous years & their new ND lock released in 2017.
Answer:
Yes, the lock has been redesigned for 2017 and many parts are no longer interchangeable. Have a look at this handy chart from Allegion. It has the visual clues you need and a list of many new components.

Visualization of the Schlage ND lock’s springcage differences.
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