Gardner Spring 37080G Extension Spring 5/8 in Od 15 Lb

Product Description

The GARDNER SPRING 37080G is a zinc-plated steel extension spring designed for light-duty tensioning and return-force applications across HVAC, plumbing, and general mechanical systems. With an outside diameter of 0.625 inches, a wire diameter of 0.063 inches, and a free length of 4.5 inches, this spring delivers a spring rate of 2.4 lb/in and a maximum work load of 15 lb. Initial tension is rated at 1.5 lb. The zinc-plated finish provides corrosion resistance in exposed or moderately harsh environments. HVAC technicians, plumbers, and general mechanical tradespeople routinely use extension springs of this type for damper linkages, latch mechanisms, and door return assemblies.

This spring is suited for residential and light commercial applications where a compact, low-profile tensioning component is needed. The 10.13-inch maximum extended length gives adequate travel for most small-scale mechanical linkages. Sold in a package of 3 pieces, making it practical for service technicians who need spares on hand or who are servicing multiple units in a single visit.

Key Features

• Zinc-plated finish for corrosion resistance in exposed installations
• Spring rate of 2.4 lb/in for predictable, consistent return force
• Maximum work load of 15 lb with an initial tension of 1.5 lb
• Outside diameter of 0.625 inches and wire diameter of 0.063 inches for compact fitment
• Free length of 4.5 inches, maximum extended length of 10.13 inches
• Sold in a pack of 3 pieces for service-ready inventory

Compatibility

Designed as a standard-geometry extension spring for light-duty mechanical linkage applications in HVAC, plumbing, and general trade equipment where a 5/8-inch OD, 0.063-inch wire diameter spring with a 2.4 lb/in rate is specified.

Installation Notes

Extension springs should be installed by a qualified technician familiar with the mechanical assembly being serviced. Always de-energize or shut down the associated system before removing or installing tension springs to prevent unexpected movement. Use appropriate hand tools and eye protection when stretching or seating the spring hooks. Do not exceed the rated maximum work load of 15 lb to avoid permanent deformation or failure.