Sargent 68-4270 Upper Link Assembly | LHRB Handing

The Sargent 68-4270 is a genuine OEM replacement upper link assembly designed specifically for Sargent 8700 Series Surface Vertical Rod (SVR) Exit Devices. This critical linkage component transfers the mechanical motion from the pushpad chassis to the vertical rods. Because this part is hand-specific, this LHRB (Left Hand Reverse Bolt) version is precision-timed to ensure the internal lift mechanism operates with the correct leverage and travel for your specific door swing.

Institutional Grade Features & Benefits

• Optimized Mechanical Timing: Specifically engineered for LHRB door configurations to provide smooth, low-effort latch retraction.
• Direct 8700 Series Compatibility: Designed to fit seamlessly into the internal lift-arm assembly of Sargent’s heavy-duty surface vertical rod devices.
• Durable Construction: Manufactured from high-strength architectural alloys to withstand the constant cycling and torque found in schools, hospitals, and high-traffic commercial corridors.
• Fire-Rated Reliability: A critical component for maintaining the life-safety functions of fire-rated vertical rod exit devices.
• Precision Fit: Eliminates the "slop" or "play" in the pushpad that occurs when internal linkage becomes worn or bent over years of service.

Technical Specifications

• Model Number: 68-4270
• Handing: LHRB (Left Hand Reverse Bolt)
• Part Type: Upper Link Assembly
• Compatibility: Sargent 8700 & NB-8700 Series Surface Vertical Rod Devices
• Material: Heavy-Duty Industrial Alloy

Critical Ordering Information:

The Sargent 68-4270 is a handed component. To ensure proper operation of your exit device, you must confirm the handing of your door before ordering. If the link is installed on the incorrect hand, the mechanism will not engage the vertical rods properly.

How to Determine Your Door Handing: Stand on the outside (secure side) of the door.

• If the hinges are on the Left and the door swings Toward You, you require this LHRB assembly.
• If you are unsure, please compare your door's swing to the handing diagram below for clarification.

The Upper Link Assembly is often the culprit when an exit device pushpad feels "spongy" or fails to pull the rods high enough to clear the strike. When replacing the 68-4270, we recommend inspecting the rod connectors for wear. Because vertical rod hardware is subject to high vibration, ensure the chassis is firmly anchored to the door using high-strength thru bolts to prevent the internal linkage from becoming misaligned during operation.

Explore Our Range of Related Exit Device Products

When it comes to enhancing your exit solutions, there's a diverse range of related products you can consider. From small but crucial components to advanced enhancements, here's a curated list to guide your selection:

Essential Components

• Screws for Exit Devices
  Secure your exit installations seamlessly with high-quality screws, crucial for maintaining the integrity of any exit system.
• Through Bolts
  Ensure maximum stability and durability for any exit device installation.

Lever and Knob Trims

• Lever Trim for Exit Devices
  Upgrade your existing exit devices with sleek and functional lever trims, which provide a blend of style and secure handling.
• Escutcheon Trim Options
  Opt for ergonomic escutcheon trims designed to enhance security and usability of exit devices.

Electrified and Keypad Innovations

• Electrified Trim Exit Devices
  Ideal for modern applications, these electrified options offer the perfect balance of security and convenience.
• Keypad Series Exit Devices
  Experience enhanced security with keypads that offer tailored access controls. Essential for areas requiring restricted access.

Strikes and Other Accessories

• Strike for Exit Devices
  Vital in ensuring that doors latch securely, strikes are an essential addition to any exit device setup.

Each of these components ensures that your premises remain secure while adding a touch of sophistication. Select the products that best suit your needs and budget, and enhance your exit systems today.