Gardner Spring 36449G Precision Compression Spring

Product Description

The GARDNER SPRING 36449G is a precision compression spring manufactured from music wire (AISI 302 / ASTM A228 / ASTM A313) with a plain silver finish. It features a 0.42-inch outside diameter, a 2-inch free length, and a 0.047-inch wire diameter. The spring delivers a rated spring rate of 11.5 pounds per inch and a maximum working load of 15 pounds. Closed and ground ends provide flat, stable seating surfaces for consistent axial loading. This spring suits maintenance technicians, mechanical assemblers, and trade professionals who require a reliable, spec-grade compression spring for precision mechanical applications.

This spring is commonly used in HVAC equipment, plumbing assemblies, electrical enclosures, and general mechanical systems where controlled compression force is required. Its compact form factor and precision tolerances make it suitable for valve assemblies, actuator mechanisms, latching hardware, and similar load-bearing spring applications in both residential and light commercial equipment. Solid height of 0.683 inches limits travel and prevents coil bind under maximum load conditions.

Key Features

• 0.42-inch outside diameter with 0.438-inch recommended hole diameter for guided installation
• 11.5 pounds per inch spring rate for predictable, linear compression response
• 15-pound maximum working load rated capacity
• Closed and ground end type for flat seating and accurate load transfer
• Music wire construction meets AISI 302, ASTM A228, and ASTM A313 standards
• 0.683-inch solid height limits coil bind under full compression

Compatibility

Designed as a precision OEM-style compression spring for mechanical assemblies requiring a 0.42-inch OD, 2-inch free length, closed and ground end spring with an 11.5 pounds per inch spring rate.

Installation Notes

Installation is performed by mechanical technicians or trade professionals familiar with spring-loaded assemblies. De-energize or depressurize the system before replacing any spring component. Use the recommended 0.438-inch hole diameter for guided-fit installation to maintain proper axial alignment and prevent buckling under load. Do not compress the spring below its solid height of 0.683 inches during assembly or testing.