Gardner Spring E49C-SS Extension Spring 8.5 Lb 0.437 in Od

Product Description

The GARDNER SPRING E49C-SS is a stainless steel extension spring engineered for consistent, repeatable tension across a wide range of light-duty mechanical applications. With an outside diameter of 0.437 inches and a wire diameter of 0.0475 inches, this spring delivers a spring rate of 1.62 lb/in and supports a maximum work load of 8.5 pounds. The overall free length is 4 inches, extending to a maximum of 8.25 inches under load. It is suited for installation by maintenance technicians, mechanical assemblers, and trade professionals working on equipment requiring precise tension control.

This extension spring is appropriate for use in residential and light commercial mechanical assemblies where consistent return force is needed. Typical applications include HVAC damper linkages, door and panel latching mechanisms, and general equipment tensioning systems. The 0.437-inch OD and 1.62 lb/in spring rate make it a practical fit for compact mechanical spaces where a small-diameter, moderate-load spring is specified. This product is sold in packages of 6 pieces.

Key Features

• Outside diameter of 0.437 inches for compact fitment in tight assemblies
• Spring rate of 1.62 lb/in for predictable, linear tension response
• Maximum work load of 8.5 pounds for light-duty tensioning applications
• Free length of 4 inches, extending to 8.25 inches at maximum load
• Wire diameter of 0.0475 inches for fine-gauge, precision spring performance
• Sold in a package of 6 pieces to support replacement inventory needs

Compatibility

Designed as a general-purpose extension spring suitable for mechanical assemblies requiring a 0.437-inch OD spring with a 1.62 lb/in spring rate and up to 8.5 pounds of maximum work load.

Installation Notes

Extension springs store energy under tension and should be installed and removed with appropriate hand tools while the connected assembly is de-energized or de-pressurized. Verify that the mounting hooks or anchor points match the spring end configuration before installation. Wear eye protection when handling extension springs, as sudden release can cause injury. Follow applicable equipment manufacturer service documentation and any relevant mechanical codes for the host assembly.