Gardner Spring E49C Extension Spring 8.01 Lb 0.437 in Od

Product Description

The GARDNER SPRING E49C is a coil extension spring rated for a maximum work load of 8.01 pounds and a spring rate of 1.87 lb/in. The spring features a 0.437 inch outside diameter, a 0.0475 inch wire diameter, and a free length of 4 inches, extending to a maximum of 7.41 inches under load. This type of spring stores and releases tensile energy when pulled apart, making it a standard mechanical component used across HVAC equipment, damper linkages, door assemblies, and general industrial applications. Installation is typically performed by a technician or maintenance professional familiar with spring-loaded mechanical assemblies.

The E49C extension spring is suited for light-duty mechanical applications requiring a compact, precise spring with consistent return force. Its 4 inch free length and 7.41 inch maximum extended length provide a working stroke appropriate for damper actuators, access panels, equipment latches, and similar mechanisms found in residential and commercial HVAC systems and general equipment assemblies. The spring ships in a package quantity of 6 units.

Key Features

• 8.01 lb maximum work load for light-duty tensile applications
• 1.87 lb/in spring rate for consistent, predictable return force
• 0.437 inch outside diameter for compact fitment in tight assemblies
• 4 inch free length extending to 7.41 inches maximum under load
• 0.0475 inch wire diameter for fine-pitch coil construction
• Sold in a package of 6 springs to support service inventory needs

Compatibility

Designed as an OEM-style replacement extension spring for light-duty mechanical assemblies in HVAC equipment, damper linkages, access panels, and similar applications requiring a 0.437 inch OD coil extension spring.

Installation Notes

Extension springs store energy under tension and must be handled with care during removal and installation to prevent sudden release. Wear appropriate eye protection and gloves when working with loaded springs. Power down or de-energize any connected equipment before servicing spring-loaded components. Verify the replacement spring free length, outside diameter, wire diameter, and spring rate match the original specification before installation.