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The GARDNER SPRING E20C-SS is a stainless steel extension spring designed to store and release energy under tensile load. With an outside diameter of 0.312 inches and a wire diameter of 0.0286 inches, this spring delivers a spring rate of 0.55 pounds per inch and a maximum work load of 2.77 pounds. The free length is 2.5 inches, extending to a maximum of 6.77 inches under load. It is suitable for light-duty mechanical assemblies across HVAC equipment, plumbing hardware, and general industrial applications. Licensed technicians and maintenance professionals working on equipment with tensioning mechanisms will find this a dependable OEM-style replacement component.
This extension spring fits applications requiring a compact, low-load tensioning element. Common uses include damper linkages, door closure mechanisms, valve actuator returns, and small equipment latching systems found in residential and light commercial service environments. The spring ships in a package quantity of six, making it practical for service shops and technicians who replace these components routinely across multiple units.
Designed as an OEM-style replacement extension spring for light-duty mechanical assemblies in HVAC, plumbing, and general industrial equipment requiring a 0.312 inch OD spring with a 0.55 lb/in spring rate.
Installation should be performed by a qualified technician familiar with spring-loaded mechanical assemblies. Always de-energize or depressurize the equipment before replacing any spring components to prevent injury from sudden release of stored energy. Inspect mounting hooks or attachment points for wear or deformation before installing the new spring. Do not stretch the spring beyond the rated maximum extended length of 6.77 inches during installation or operation.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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