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“ rim vs mortise lock ”

Resolution: The "500" Series trim in general (510L, 511L, 512's, & 513K) will work with all 25 series devices and are not device specific.:

What cylinder does the 512 TP NL use?

Resolution: A 1-1/8 through 1-1/2" mortise cylinder with straight cam per Step 4 of 512NL Instructions.:

How do you change the Von Duprin 990TP trim to NL function?

Resolution: Recommend to order a new 990NL-R/V or M trim to change from TP/Classroom function to NL/Storeroom function. You will also need to reinstall the NL drive screw back into into the mast...:

Do we offer a parts pack for modular mortise or rim cylinder?

Resolution: See descriptions for the 09-992 thru 09-997 parts kits for modular mortise cylinders. The 09-998 is a kit for a rim cylinder. :

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