Sargent 82-3672 Split Spindle Assembly for 8200 & 7800 Series Mortise Locks

The Sargent 82-3672 is a genuine OEM replacement split spindle assembly (also referred to as an FW-Spindle) designed specifically for Sargent 8200 Series and 7800 Series mortise locks. As a factory-original component, it ensures precise fit, correct torque transfer, and long-term reliability — restoring your mortise lock to its original operating specification without the guesswork of aftermarket alternatives. This part is ideal for facility maintenance teams, locksmiths, and door hardware professionals performing targeted component-level repairs on Sargent mortise lock hardware.

Institutional-Grade Features & Benefits

• Genuine OEM Quality: Manufactured by Sargent to the same tolerances as the original factory-installed spindle, ensuring a drop-in fit with no modification required.
• Split Spindle Design: The split (FW) configuration allows the spindle to transmit lever or knob rotation to the mortise lock chassis independently on each side of the door, a critical feature for proper mortise lock function and lever independence.
• Series-Specific Compatibility: Engineered exclusively for Sargent 8200 Series and 7800 Series mortise locksets, maintaining the operational integrity of the complete lock assembly.
• Component-Level Repair Solution: Replacing only the worn or damaged spindle extends the service life of the full mortise lock body, avoiding costly complete lockset replacement.
• Trusted Brand Reliability: Sargent is a recognized leader in commercial door hardware, and OEM replacement parts like the 82-3672 uphold the performance standards expected in institutional, commercial, and high-traffic applications.

Applications

The Sargent 82-3672 split spindle assembly is suited for commercial, institutional, and industrial door hardware maintenance wherever Sargent 8200 or 7800 Series mortise locks are installed — including schools, hospitals, government facilities, office buildings, and multi-family residential properties. It is the correct replacement part when lever sag, free-spinning handles, or failed spindle-to-lock engagement is diagnosed in these series.

Technical Details