Gardner Spring E29C Extension Spring 3.76 Lb 0.375 in Od

Product Description

The GARDNER SPRING E29C is a zinc-plated steel extension spring designed for light-duty tensioning applications across mechanical, HVAC, and equipment assembly uses. It features a 0.375 inch outside diameter, a 0.0348 inch wire diameter, and a spring rate of 2.32 lb/in. The maximum work load is 3.76 lb, and the maximum extended length is 2.85 inches. The cross-over end style makes it straightforward to hook onto mounting points without additional hardware. At a free length of 1.5 inches, this spring fits into compact assemblies where space is limited. Licensed technicians and equipment assemblers working on damper linkages, access panels, and light mechanical assemblies will find this a direct-fit tensioning component.

This extension spring suits residential and light commercial equipment where a small-diameter, low-load tension element is needed. Common applications include HVAC damper return mechanisms, control panel latches, and equipment access door retention. The cross-over end style is well suited to standard hook mounts and sheet-metal tab installations. Sold in packages of 12 units, making it practical for service trucks and maintenance stock where multiples are frequently needed.

Key Features

• Cross-over end style for easy hook-mount installation on standard tab and pin anchors
• 0.375 inch outside diameter fits compact assemblies with limited clearance
• 2.32 lb/in spring rate provides consistent, predictable return force
• Zinc-plated steel finish for corrosion resistance in typical indoor mechanical environments
• Maximum extended length of 2.85 inches with a 3.76 lb maximum work load
• Packaged in quantities of 12 for efficient service stock replenishment

Compatibility

Designed as a standard replacement or stock extension spring for light-duty tensioning applications in HVAC equipment, mechanical assemblies, and commercial equipment panels where a 0.375 inch OD, cross-over end extension spring is specified.

Installation Notes

Installation is typically performed by HVAC technicians, mechanical assemblers, or equipment service professionals. Always de-energize and lock out the equipment before replacing tensioning springs to prevent unexpected movement. Use appropriate hooked picks or spring-installation tools to seat the cross-over ends onto anchor points without overstretching the spring beyond its maximum extended length. Do not exceed the rated maximum work load of 3.76 lb to avoid permanent deformation.