Gardner Spring 37054GS Extension Spring 3/8 in Od

Product Description

The GARDNER SPRING 37054GS is a stainless steel extension spring designed for light-duty tensioning and return-force applications across mechanical, HVAC, and industrial assemblies. It features a 3/8 inch outside diameter, a free length of 1 inch, and a maximum extended length of 1.43 inches. The spring rate is 17.57 lb/in with a maximum work load of 8.7 pounds and an initial tension of 1.2 pounds. The plain finish stainless steel construction resists corrosion in exposed or humid environments. Sold in packages of 3, this spring suits technicians and assemblers who need reliable, repeatable tension performance in compact spring applications.

This extension spring is suited for residential and light commercial mechanical systems where a small-diameter, low-profile return spring is required. Typical applications include HVAC damper linkages, control panel assemblies, door and access panel latches, and other tensioning mechanisms that demand consistent spring force within a short travel range. The 0.045 inch wire diameter and stainless steel material make it appropriate for environments where corrosion resistance and dimensional consistency are priorities.

Key Features

• Stainless steel construction provides corrosion resistance in humid or exposed service environments
• Spring rate of 17.57 lb/in delivers consistent, predictable tension force across the working range
• Maximum work load of 8.7 pounds with initial tension of 1.2 pounds for controlled preload
• Compact profile: 3/8 inch OD, 1 inch free length, 1.43 inch maximum extended length
• Plain finish for straightforward installation without coating interference
• Packaged in quantities of 3, minimizing downtime for multi-unit service calls

Compatibility

Designed as a standard-profile extension spring for mechanical assemblies requiring a 3/8 inch OD, 1 inch free length configuration with a 17.57 lb/in spring rate.

Installation Notes

Extension springs should be installed by qualified technicians familiar with mechanical assembly procedures. Disconnect power and relieve any system tension before removing or installing springs in powered assemblies. Use appropriate spring hooks or installation tools to seat the spring ends fully without overstretching beyond the maximum extended length of 1.43 inches. Overstretching an extension spring beyond its rated maximum load can cause permanent deformation or failure.