Gardner Spring 37073GS Extension Spring 0.5in Od Stainless

Product Description

The GARDNER SPRING 37073GS is a stainless steel extension spring designed for applications requiring reliable tensile force across a controlled range of motion. With an outside diameter of 0.5 inches and a wire diameter of 0.063 inches, this spring handles a maximum work load of 16.52 pounds and an initial tension of 2 pounds. The spring rate is 9.3 pounds per inch, delivering consistent, predictable force throughout its extension range. It suits light-to-medium duty mechanical assemblies in HVAC equipment, plumbing fixtures, pool equipment, and general industrial applications. Installation is typically performed by maintenance technicians and equipment service professionals.

This extension spring is suited for use in equipment linkages, door assemblies, valve actuators, and mechanical controls where a compact, corrosion-resistant spring with defined load characteristics is required. The stainless steel construction makes it appropriate for environments with moisture exposure, including pool equipment enclosures and plumbing system components. Each package contains 3 pieces, supporting single-unit replacement or small-batch servicing needs.

Key Features

• Stainless steel construction resists corrosion in wet or humid environments
• Spring rate of 9.3 pounds per inch for predictable, linear force response
• Maximum work load of 16.52 pounds with 2-pound initial tension preload
• Outside diameter of 0.5 inches fits compact mechanical assemblies
• Maximum extended length of 4.06 inches with a free length of 2.5 inches
• Plain finish with no coating for straightforward dimensional consistency

Compatibility

Designed as an OEM-style replacement or service extension spring for light-to-medium duty mechanical assemblies requiring a 0.5-inch OD stainless steel spring with a 9.3 lb/in spring rate.

Installation Notes

Extension springs should be installed by qualified technicians familiar with the mechanical system being serviced. Always de-energize or depressurize the equipment before replacing springs to prevent injury from stored mechanical energy. Use appropriate spring hooks or tooling rated for the load range to avoid deforming the hook ends during installation. Verify the replacement spring free length, wire diameter, and spring rate match the original specification before completing the repair.