Gardner Spring 36491G Precision Compression Spring

Product Description

The GARDNER SPRING 36491G is a precision compression spring manufactured from music wire (AISI 302 / ASTM A228 / ASTM A313) for consistent, repeatable performance under load. It measures 0.48 inches in outside diameter and 0.75 inches in free length, with a wire diameter of 0.072 inches. The spring delivers a rate of 146.91 pounds per inch and handles a maximum work load of 44 pounds (205.96 N). Closed and ground ends provide flat, stable seating surfaces for accurate load transfer. Maintenance technicians, assemblers, and field service professionals in HVAC, plumbing, and mechanical trades routinely stock this type of precision spring for valve, actuator, and component replacement work.

This spring is suited for light-duty mechanical assemblies requiring precise force characteristics in a compact envelope. Its 0.5 inch hole diameter clearance and 0.448 inch solid height make it a practical fit for space-constrained applications in residential and commercial equipment. Typical installation scenarios include valve bodies, pressure regulators, control linkages, and mechanical actuators where a standardized compression spring with certified material compliance is specified.

Key Features

• Outside diameter of 0.48 inches fits a 0.5 inch hole diameter clearance
• Spring rate of 146.91 pounds per inch for predictable, linear load response
• Maximum work load of 44 pounds (205.96 N)
• Closed and ground end type for flat seating and accurate load application
• Music wire construction meets AISI 302, ASTM A228, and ASTM A313 standards
• Plain silver finish with 0.448 inch solid height for compact stacking

Compatibility

Designed as a precision-grade replacement compression spring for mechanical assemblies requiring a 0.48 inch OD, 0.75 inch free length, closed-and-ground music wire spring meeting AISI 302, ASTM A228, and ASTM A313 material standards.

Installation Notes

Installation is performed by qualified mechanical, HVAC, or plumbing technicians. Depressurize and de-energize any system before accessing spring-loaded components. Confirm free length, outside diameter, and spring rate match the assembly specification before installation to avoid over-compression or insufficient load. Do not compress the spring beyond its solid height during service.