Gardner Spring 37056GS Extension Spring 3/8 in Od 8.7 Lb

Product Description

The GARDNER SPRING 37056GS is a stainless steel extension spring designed to store and release energy under tensile load. With an outside diameter of 0.375 inches and a wire diameter of 0.045 inches, this spring delivers a spring rate of 2.78 lb/in and a maximum work load of 8.7 pounds. The free length is 3.0 inches and the maximum extended length is 5.69 inches. Initial tension is rated at 1.2 pounds. This spring is suited for use by mechanical technicians, HVAC service professionals, and maintenance trades wherever a compact, corrosion-resistant extension spring is needed.

This extension spring is applicable across a wide range of light-duty mechanical assemblies, including HVAC equipment linkages, damper actuators, door assemblies, and general industrial mechanisms. The stainless steel construction and plain finish make it suitable for environments where mild corrosion resistance is required. Sold in a package of 3 pieces, making it practical to keep spares on hand for repetitive service work or multi-unit installations.

Key Features

• Stainless steel construction provides corrosion resistance for demanding service environments
• Spring rate of 2.78 lb/in for predictable, consistent load response
• Maximum work load of 8.7 pounds with an initial tension of 1.2 pounds
• Outside diameter of 0.375 inches and wire diameter of 0.045 inches for compact fitment
• Free length of 3.0 inches; extends to a maximum of 5.69 inches
• Plain finish; package quantity of 3 pieces per order

Compatibility

Designed as a standard-dimension extension spring suitable for light-duty mechanical assemblies requiring a 3/8 inch OD, 0.045 inch wire diameter spring with a 3.0 inch free length.

Installation Notes

Installation is typically performed by qualified mechanical or HVAC technicians. De-energize and lock out all associated equipment before removing or installing spring components to prevent unexpected movement or injury. Use appropriate hand tools and eye protection when stretching or seating extension springs under tension. Do not exceed the rated maximum work load of 8.7 pounds to avoid permanent deformation or spring failure.