Gardner Spring 36557G Precision Compression Spring

Product Description

The GARDNER SPRING 36557G is a precision compression spring manufactured from music wire with a plain silver finish. It features a 0.72-inch outside diameter and a 1-inch free length, making it a compact, high-cycle component suited for mechanical assemblies across HVAC equipment, plumbing fixtures, valves, and general industrial hardware. The spring delivers a 97 lb/in spring rate and supports a maximum working load of 53 pounds. Closed and ground ends provide stable seating and consistent load transfer under compression. Technicians and assemblers working with OEM replacement components or custom mechanical builds will find this spring a direct-fit option where precise load characteristics are required.

This compression spring fits into applications where controlled force and consistent deflection are critical. It is commonly used in valve assemblies, actuator mechanisms, pump components, and similar hardware found in residential and light commercial HVAC, plumbing, and industrial systems. The 0.72-inch OD is sized to fit inside a hole diameter of 0.75 inches. Its compact 1-inch free length and 0.451-inch solid height allow installation in space-constrained assemblies. Sold in a package of 5 units with a minimum order quantity of 1.

Key Features

• 0.72-inch outside diameter with a 0.75-inch recommended hole diameter for a snug bore fit
• 97 lb/in spring rate for predictable, linear force response under load
• 53-pound maximum working load capacity
• Closed and ground ends for flat, stable seating and accurate load application
• Music wire construction meeting AISI 302, ASTM A228, and ASTM A313 standards
• Plain silver finish suitable for dry or lightly lubricated mechanical environments

Compatibility

Designed as an OEM-style replacement or aftermarket compression spring for mechanical assemblies requiring a 0.72-inch OD, 1-inch free length, closed and ground end compression spring with a 97 lb/in spring rate.

Installation Notes

Installation is typically performed by mechanical technicians or assembly technicians working on valve, actuator, or pump components. Always de-energize or depressurize the assembly before removing or installing compression springs to prevent uncontrolled release of stored energy. Confirm the bore diameter, free length, and spring rate match the application requirements before installation. Use appropriate hand tools and eye protection when compressing or seating the spring.