Sargent 82-0397 Straight Spindle (2-1/8" – 2-3/8") — Genuine OEM Replacement for 8200 & 7800 Series Mortise Locks

The Sargent 82-0397 is a genuine OEM straight spindle designed as a direct replacement component for Sargent 8200 Series and 7800 Series mortise locks. Engineered to Sargent's original factory specifications, this spindle accommodates door preparations requiring a 2-1/8" to 2-3/8" spindle length, making it the correct choice when restoring or servicing a Sargent mortise lock to like-new operating condition. Sourcing a genuine OEM part — rather than an aftermarket substitute — ensures proper fit, consistent lever or knob actuation, and long-term reliability in the mortise lock assembly.

Institutional Grade Features & Benefits

• Genuine OEM Part: Manufactured by Sargent to exact original specifications, ensuring a precise, factory-correct fit within the 8200 and 7800 Series mortise lock chassis.
• Correct Spindle Length Range: Designed for doors requiring a 2-1/8" to 2-3/8" spindle, covering the most common mortise lock door-prep dimensions in commercial and institutional applications.
• Restores Proper Lever or Knob Function: Replacing a worn, bent, or broken spindle with part 82-0397 returns the mortise lock trim to full, smooth operation without the need for complete lock replacement.
• Direct Drop-In Replacement: Designed specifically for Sargent 8200 Series mortise locks, eliminating guesswork and reducing installation time for facility managers, locksmiths, and door hardware professionals.
• Reduces Downtime & Cost: A targeted spindle replacement is a cost-effective alternative to full mortise lock assembly replacement, extending the service life of installed hardware in schools, hospitals, offices, and government facilities.

About the Sargent 8200 Series Mortise Lock

The Sargent 8200 Series is a heavy-duty, commercial-grade mortise lock line widely specified in institutional, healthcare, education, and government facilities. Mortise locks are installed within a pocket (mortise) cut into the door edge, providing a robust, tamper-resistant locking solution. The spindle is the connecting rod that transfers rotational motion from the exterior and interior trim (lever or knob) to the lock's internal latch mechanism. A correctly sized and properly functioning spindle is essential to the reliable day-to-day operation of the mortise lock.

Technical Details