Sargent 68-5590 HK-55-56 Narrow Rail Assembly for 80 Series Exit Devices (Size E: 24" to 32" Doors)

The Sargent 68-5590 is a genuine OEM Narrow Rail Assembly — also referenced as the HK-55-56 E assembly — designed as a direct replacement component for Sargent 80 Series exit devices. This assembly is sized E, which fits doors ranging from 24 inches to 32 inches in width, making it suitable for a variety of narrow and standard door applications in commercial and institutional settings. As an authentic Sargent OEM part, it ensures proper fit, function, and longevity when restoring or servicing an 80 Series exit device installation.

Institutional Grade Features & Benefits

• Genuine OEM Replacement: Manufactured by Sargent to exact factory specifications, ensuring a precise drop-in fit for 80 Series exit device configurations without modification.
• Narrow Rail Design: The narrow rail assembly profile is engineered for doors where a low-profile, trim exit device rail is required, maintaining door aesthetics while preserving egress performance.
• Size E Rail Stock: Covers door widths from 24" to 32", providing flexibility across a range of door sizes commonly found in commercial, educational, healthcare, and government facilities.
• 80 Series Compatibility: Engineered exclusively for the Sargent 80 Series exit device line, eliminating guesswork during maintenance, repair, or retrofit projects.
• Reliable Service Life: OEM components are built to the same tolerances as the original device hardware, supporting long-term reliability in high-traffic egress door applications.
• Simplified Procurement: Ordering by verified part number 68-5590 ensures facilities managers, locksmiths, and door hardware distributors receive the correct assembly the first time.

Technical Details

Applications

The Sargent 68-5590 Narrow Rail Assembly is the preferred replacement part for facilities maintenance teams, licensed locksmiths, door hardware contractors, and institutional procurement departments tasked with keeping Sargent 80 Series exit devices in peak operating condition. Typical applications include commercial office buildings, K-12 and higher education campuses, healthcare facilities, government buildings, and any high-traffic egress door where the 80 Series exit device platform has been installed. Specifying the correct OEM assembly by part number — 68-5590 — ensures code-compliant egress door hardware maintenance and minimizes downtime during service calls.