Gardner Spring 37057GS Extension Spring 0.375in Od

Product Description

The GARDNER SPRING 37057GS is a stainless steel extension spring designed for light-duty tensioning and return applications across mechanical, HVAC, and equipment assemblies. With an outside diameter of 0.375 inches, a free length of 1.25 inches, and a wire diameter of 0.055 inches, this spring delivers a spring rate of 30.26 pounds per inch and a maximum work load of 15.22 pounds. The plain finish stainless steel construction resists corrosion in moderate-exposure environments. This part is sold in a package quantity of 3, making it practical for service stock or small-batch assembly work. Technicians and maintenance professionals working on equipment requiring small-format extension springs will find this a straightforward drop-in component.

This extension spring is suited for residential and light commercial applications where a compact, high-cycle tensioning element is required. Common installations include damper linkages, access panel latches, equipment door returns, and similar spring-loaded mechanisms found in HVAC cabinets and mechanical equipment. The 0.055 inch wire diameter and 1.69 inch maximum extended length make it appropriate for tight-clearance spring seats where space is limited.

Key Features

• Outside diameter of 0.375 inches fits compact spring seats and tight-clearance applications
• Maximum work load of 15.22 pounds and spring rate of 30.26 pounds per inch for predictable tensioning
• Stainless steel construction with plain finish for corrosion resistance in moderate environments
• Initial tension of 2.0 pounds holds position without slack at rest
• Maximum extended length of 1.69 inches limits over-extension during operation
• Package quantity of 3 supports service stock and small-batch assembly needs

Compatibility

Designed as an OEM-style replacement or service stock extension spring for mechanical assemblies, HVAC equipment linkages, and light industrial applications requiring a 0.375 inch OD stainless steel extension spring with a 30.26 lb/in spring rate.

Installation Notes

Extension springs of this size are typically installed by HVAC technicians, millwrights, or maintenance mechanics using standard hand tools. De-energize or lock out any equipment before replacing spring components to prevent unexpected movement. Inspect hook ends and spring seats for wear or corrosion before installation, and verify the replacement spring rate and load rating match the original specification. Do not stretch the spring beyond its maximum extended length of 1.69 inches during installation or operation.