Sargent 68-4568 Center Chassis Assembly - 12-NB-8700 Series - LHR

The Sargent 68-4568 is a genuine OEM Center Chassis Assembly (Active Case) designed specifically for the Sargent 12-NB-8700 Series Surface Vertical Rod (SVR) exit device. This specialized chassis is engineered for No Bottom Rod (NB) applications, which are commonly used on fire-rated openings where a floor strike or threshold latch is not desired. Configured for Left Hand Reverse (LHR) openings and sold "Less Cover," this factory-spec assembly ensures your fire-labeled door maintains its safety rating while providing smooth, top-latching performance.

Institutional Grade Features & Benefits

• "NB" (No Bottom Rod) Optimized: Specifically timed to operate only the top rod, eliminating the mechanical drag and maintenance associated with bottom bolts.
• Fire-Rated (12-) Compliance: UL-certified for use on fire-labeled openings, housing the heavy-duty internal components required for life-safety code adherence.
• LHR Specific Configuration: Factory-set for Left Hand Reverse doors to ensure internal lift-lever geometry aligns perfectly with your top rod assembly.
  
• Direct OEM Replacement: The professional solution for restoring a failing 12-NB-8700 device without the high cost of a complete hardware overhaul.
• High-Traffic Reliability: Constructed from high-strength alloys to withstand the mechanical stress of schools, hospitals, and high-frequency commercial exits.

Technical Specifications

• Manufacturer: Sargent (ASSA ABLOY)
• Model Number: 68-4568
• Part Type: Center Chassis / Active Case Assembly
• Series Compatibility: Sargent 12-NB-8700 (Fire Rated, No Bottom Rod)
• Handing: Left Hand Reverse (LHR) - Handing information is required upon order.
• Inclusions: Sold "Less Cover" (Chassis only)

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