This is a lock mechanism for a sling glass door NAMI-302187

Hello,

If you need the internal mortise lock, see the 82-218 and compare the measurements below to yours.

Profile view of 82-218

Opposite side view 82-218

If you need a new key lock, we also offer the 82-310 commonly used with this lock. Keep in mind that you will need to cut down the spindle to match the original lock as shown in our guide. Note that if it is cut too short, it won't engage with the mortise lock. Thanks for posting! 

Alternate view of 82-310

Guide: Legacy Patio Door Handles, Locks & Spindles