Sargent 82-3671 FW-Spindle (Split) Assembly – 8200 Series Mortise Lock Replacement Part

The Sargent 82-3671 is a genuine OEM FW-Spindle (split) Assembly designed as a direct replacement component for Sargent 8200 Series and 7800 Series mortise locks. Also referenced by its part designation 82-3671, this split spindle assembly is engineered to Sargent's original factory specifications, ensuring precise fitment and reliable operation when restoring or servicing a Sargent mortise lock. Sourcing a genuine OEM spindle — rather than an aftermarket substitute — preserves the mechanical integrity and performance of your Sargent mortise lockset.

Institutional Grade Features & Benefits

• Genuine Sargent OEM Part: Manufactured to Sargent's original factory tolerances for the 8200 and 7800 Series mortise lock product lines, ensuring a correct, reliable fit without modification.
• Split Spindle Design: The split-spindle (FW) configuration is the correct assembly type for the specified 8200 Series mortise lock application, allowing the interior and exterior trim to operate independently as required by the lock function.
• Direct Drop-In Replacement: Engineered to replace a worn, broken, or missing spindle assembly in existing Sargent 8200 Series or 7800 Series mortise lock installations, minimizing downtime and service labor.
• Restores Proper Lever or Trim Operation: A failed or damaged spindle is a common cause of non-functioning lever trim on mortise locks; replacing with the correct OEM spindle restores full mechanical function.
• Ideal for MRO and Service Applications: Well-suited for facility maintenance, locksmith service calls, and institutional hardware repair programs where maintaining original Sargent hardware is required.

About the Sargent 8200 Series Mortise Lock

The Sargent 8200 Series is a commercial and institutional-grade mortise lockset widely specified in schools, healthcare facilities, government buildings, and other high-traffic environments. The 37 function designation identifies the specific operational behavior of the mortise lock body this spindle services. The split spindle assembly is a critical internal component that transmits rotational motion from the door trim (lever or knob) to the lock mechanism.

Technical Details