Gardner Spring 42-45-1750 Extension Spring 0.42in Od

Product Description

The GARDNER SPRING 42-45-1750 is a small-format extension spring designed for light-load tensioning applications across a broad range of mechanical assemblies. It features an outside diameter of 0.42 inches, a wire diameter of 0.045 inches, and a maximum extended length of 0.82 inches. The spring rate is 5.1 lb/in, with an initial tension of 0.82 pounds. These dimensions make it suited for compact mechanisms where precise return force and consistent deflection are critical. Installation is handled by maintenance technicians and mechanical assemblers working on equipment requiring close-tolerance spring components.

This extension spring is applicable in residential and light commercial equipment where small tensioning or return-force components are required. Typical installation scenarios include control linkages, damper mechanisms, door assemblies, and general mechanical equipment requiring a low-profile extension spring. Its compact size and defined spring rate support consistent performance in repetitive-cycle applications.

Key Features

• 0.42 inch outside diameter for compact, tight-clearance installations
• 5.1 lb/in spring rate for predictable, linear load response
• 0.045 inch wire diameter providing light-duty tensioning force
• Maximum extended length of 0.82 inches suits short-stroke applications
• Inside hook length of 1-3/4 inches for secure hook engagement
• Initial tension of 0.82 pounds reduces coil separation under minimal load

Compatibility

Designed as an OEM-style replacement extension spring for compact mechanical assemblies requiring a 0.42 inch OD, 0.045 inch wire diameter, and 5.1 lb/in spring rate.

Installation Notes

Extension springs should be installed and replaced by qualified maintenance or mechanical technicians familiar with spring-loaded assemblies. Disconnect power and release any stored mechanical energy in the assembly before removing or installing the spring. Use appropriate hand tools and eye protection, as extension springs under load can release suddenly. Verify hook engagement and alignment before returning the assembly to service.