Sargent 10-3428 Cylinder Tailpiece for Schlage LFIC — Sargent 7-Line Bored Cylindrical Lockset

The Sargent 10-3428 is a genuine OEM cylinder tailpiece engineered specifically for use with a Schlage Large Format Interchangeable Core (LFIC) cylinder installed under the SF- option in a Sargent 7-Line bored cylindrical lockset. This precision-machined cylinder part serves as the mechanical interface between the LFIC cylinder and the lockset chassis, transmitting rotational motion from the key turn to the lock mechanism. Specifying the correct tailpiece is essential when converting or ordering a Sargent 7-Line cylindrical lock to accept a Schlage LFIC, and the 10-3428 is the factory-correct component for that configuration.

Institutional Grade Features & Benefits

• Factory-Correct LFIC Interface: Designed to the exact dimensional tolerances required for the Schlage Large Format Interchangeable Core (SF- option), ensuring proper engagement and reliable operation without field modification.
• 7-Line System Compatibility: Engineered exclusively for the Sargent 7-Line bored cylindrical lockset series, maintaining the integrity of a complete, manufacturer-matched hardware assembly.
• Precision Cylinder Part: Machined to OEM specifications so the tailpiece correctly translates cylinder rotation into lockset actuation, preserving the security and performance of the installed hardware.
• Simplifies LFIC Specification: Makes it straightforward to specify or retrofit Sargent 7-Line locks with Schlage LFIC cylinders — a common requirement in institutional, commercial, and educational facilities running a Schlage master-key system alongside Sargent locksets.
• Genuine Sargent Component: Sourced from Sargent, a recognized leader in commercial-grade door hardware, assuring quality, dimensional accuracy, and long service life.

Technical Specifications

• Cylinder Compatibility: Schlage Large Format Interchangeable Core (LFIC), SF- option
• Lockset Series Compatibility: Sargent 7-Line bored cylindrical locksets
• Part Type: Cylinder Tailpiece
• Brand: Sargent
• Part Number: 10-3428
• Product Class: Cylinder Part

Technical Details