Sargent 68-3059 Rail Assembly — J Narrow Stock, 80 Series Exit Device Replacement Part

The Sargent 68-3059 is a genuine OEM Rail Assembly engineered as a direct replacement component for Sargent 80 Series exit devices. Carrying the J narrow rail stock designation, this assembly is sized to fit doors ranging from 37 inches to 42 inches in width, making it the correct selection for standard single-door applications within that dimension range. This part is also referenced under the Sargent designation 12-58-83/84/85, reflecting its cross-compatibility across multiple 80 Series device models. As a factory-authentic OEM component, the 68-3059 restores the mechanical integrity of the exit device rail system without requiring field modification or adaptation.

Institutional Grade Features & Benefits

• Genuine OEM Quality: Manufactured by Sargent to the same standards and tolerances as the original rail assembly, ensuring a precise fit and reliable long-term performance in commercial and institutional door hardware applications.
• Correct Door Width Coverage: The J rail stock sizing accommodates door widths from 37" to 42", covering the most common single-door widths found in commercial buildings, schools, hospitals, and institutional facilities.
• Direct 80 Series Compatibility: Designed and verified for use with Sargent 8300, 8400, and 8500 exit device models — the complete compatible model designations within the 80 Series product line, ensuring no guesswork during replacement procurement.
• Simplified Maintenance: Replacing a worn or damaged rail assembly with the correct OEM part restores the exit device to specification, extending service life and maintaining code-compliant egress hardware performance.
• Part Number Confidence: The dual designation — 68-3059 (order/part number) and 12-58-83/84/85 (assembly configuration reference) — allows facility managers, locksmiths, and door hardware distributors to cross-reference and confirm the correct part with confidence.

Technical Details