Gardner Spring E42C Extension Spring 0.375in Od 9.53lb

Product Description

The GARDNER SPRING E42C is a zinc-plated steel extension spring designed for light-duty tensioning and return-force applications across mechanical assemblies, HVAC equipment, and industrial fixtures. It features a 0.375 inch outside diameter, a wire diameter of 0.0475 inches, and a spring rate of 4.34 lb/in. At full extension, the E42C reaches a maximum extended length of 4.65 inches from a nominal overall length of 3.0 inches and supports a maximum work load of 9.53 pounds. The cross-over end style allows straightforward loop-to-loop or hook attachment in confined mounting spaces. Licensed technicians and mechanical installers working on equipment panels, damper linkages, or component retention assemblies are the typical end users.

This extension spring suits residential and light commercial applications where a compact, corrosion-resistant tensioning element is required. The zinc-plated finish provides basic protection against moisture and mild environmental exposure, making it appropriate for indoor mechanical rooms, air handler cabinets, equipment panels, and similar service environments. It is sold in packages of six, making it practical for service technicians who replace springs as part of routine maintenance or repair work.

Key Features

• Cross-over end style for easy loop-to-hook or loop-to-loop installation in tight spaces
• 0.375 inch outside diameter with 0.0475 inch wire diameter for consistent spring geometry
• 4.34 lb/in spring rate provides predictable extension force across the working range
• Maximum work load of 9.53 pounds with a maximum extended length of 4.65 inches
• Zinc-plated steel construction for corrosion resistance in indoor service environments
• Sold in a package of six for efficient restocking and multi-unit service calls

Compatibility

Designed as a standard replacement extension spring for mechanical assemblies, HVAC equipment panels, damper linkages, and light industrial fixtures requiring a 0.375 inch OD cross-over style spring with a 9.53 pound maximum load rating.

Installation Notes

Installation should be performed by a qualified technician familiar with mechanical spring tensioning. De-energize or shut down the equipment fully before removing or replacing extension springs, as stored spring force can cause injury or component damage. Use appropriate hand tools and eye protection when stretching or seating the spring ends onto mounting hooks or pins. Do not exceed the rated maximum work load of 9.53 pounds to avoid permanent deformation or spring failure.