Gardner Spring 36-49-1370 Extension Spring 0.36in Od

Product Description

The GARDNER SPRING 36-49-1370 is a close-wound extension spring designed to store and release energy under tensile load. It features a 0.36-inch outside diameter, a 0.049-inch wire diameter, and a spring rate of 18.1 pounds per inch. With an initial tension of 1.2 pounds and a maximum extended length of 1.2 inches, this spring is suited for applications that require controlled resistance to stretching. It is commonly installed by HVAC technicians, appliance service pros, and mechanical equipment specialists working on light-duty assemblies requiring precise spring return force.

This extension spring fits compact mechanical assemblies where space is limited and consistent return tension is critical. Typical applications include damper linkages, small actuator assemblies, door latch mechanisms, and light-duty control linkages found in HVAC equipment and related trade hardware. The compact outside diameter and short extended length make it appropriate for tight-clearance installations inside equipment enclosures or panel assemblies.

Key Features

• 0.36-inch outside diameter for compact, tight-clearance fitment
• 18.1 pounds per inch spring rate for consistent, predictable tensile resistance
• 0.049-inch wire diameter providing durability in light-duty cycling applications
• 1.2-inch maximum extended length suited for short-travel linkage assemblies
• 1.2-pound initial tension for controlled preload without slack

Compatibility

Designed as an OEM-style replacement extension spring for light-duty mechanical assemblies requiring a 0.36-inch OD, 0.049-inch wire diameter, and 18.1 pounds per inch spring rate.

Installation Notes

Extension springs of this type are installed by HVAC technicians or mechanical service professionals. Power down or de-energize the equipment fully before servicing any spring-loaded linkage. Use appropriate hand tools and eye protection when stretching or seating extension springs, as stored tension can cause the spring to release unexpectedly. Verify the replacement spring rate and extended length match the original specification before installation.