Sargent 82-4172 Cylinder Retainer | For 8200 Series Mortise Locks

The Sargent 82-4172 is a genuine OEM Cylinder Retainer Assembly engineered specifically for the Sargent 8200 Series mortise lock line. This critical security component is designed to firmly grip the threads of the mortise cylinder, locking it into the cassette body. Identified as Part #4 on official technical diagrams, this retainer ensures that the keyed cylinder remains immovable, preventing unauthorized removal or "spinning" of the cylinder during attempted forced entry.

Institutional Grade Features & Benefits

• Maximum Tamper Resistance: Provides a high-torque mechanical grip on the cylinder body, meeting Grade 1 security standards for institutional facilities.
  
• Precision Thread Alignment: Engineered to match the specific casting of the 8200 series mortise body, ensuring the retainer screw (Part #4) doesn't cross-thread during installation.
• Direct OEM Replacement: The factory-spec solution for replacing a stripped or lost retainer, maintaining the UL fire rating and physical security of the lockset.
• Corrosion-Resistant Coating: Treated with a protective finish to prevent "seizing" over time, ensuring the cylinder can still be serviced by authorized locksmiths.
• High-Strength Steel Construction: Built to withstand the leverage used in "pulling" attacks, keeping the core of your access control system secure.

Technical Specifications

• Model Number: 82-4172
• Part Type: Cylinder Retainer (Screw/Clamp Assembly)
• Compatibility: Sargent 8200 Series Mortise Locks
• Technical Reference: Part #4 on Sargent 8200 Exploded View Diagrams
• Material: Case-Hardened Steel

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