• Replacement main spring for Ingersoll NS80
• For use with Ingersoll NS80 Automatic Rim Deadlock

The NS80 automatic Rim Deadlock has been out of production for many years, and replacement locks are no longer available.  If your main spring breaks (a common cause of failure on the NS80) this replacement spring (custom manufactured to original specs) can give your lock a new lease of life.

Please note: Replacing this spring will require disassembly of your lock. Aimed primarily at bench Locksmiths and enthusiastic amateurs, this part does not come with instructions.  Eye protection should be worn at all times when handling springs.  No technical support can be offered and the item is non-returnable.