Gardner Spring 36040GS Precision Compression Spring

Product Description

The GARDNER SPRING 36040GS is a precision compression spring manufactured from stainless steel for consistent, repeatable performance in demanding mechanical assemblies. It features a 0.3-inch outside diameter, a free length of 0.687 inches, and a wire diameter of 0.022 inches. The spring delivers a rated spring rate of 3.91 lb/in and supports a maximum work load of 2.17 pounds. Closed and ground ends provide stable seating and uniform load distribution. This part is suited for instrumentation, HVAC actuators, valves, and other mechanical control components where dimensional precision and corrosion resistance are required.

This compression spring fits applications in residential and commercial mechanical systems where a compact, small-diameter spring is needed. Typical installations include valve assemblies, actuator mechanisms, relay components, and precision instrument housings. Its stainless steel construction makes it appropriate for environments with exposure to moisture or mild corrosives. Engineers, technicians, and assemblers working with control hardware will find this spring meets tight dimensional tolerances required in production and field repair contexts.

Key Features

• Precision spring type with closed and ground ends for stable, flat seating under load
• Stainless steel construction (AISI 302) provides corrosion resistance in harsh or humid environments
• 0.3-inch outside diameter fits a 0.312-inch hole diameter for close-clearance installations
• Spring rate of 3.91 lb/in supports predictable load-deflection behavior across the working range
• Maximum work load of 2.17 pounds with a solid height of 0.128 inches
• Meets AISI 302, ASTM A228, and ASTM A313 material standards

Compatibility

Designed as a precision replacement or OEM-style component for mechanical assemblies requiring a small-diameter compression spring with closed and ground ends in stainless steel.

Installation Notes

Installation of compression springs in valve, actuator, or relay assemblies should be performed with the system depressurized and de-energized before service. Use appropriate hand tools and spring installation fixtures to avoid overstressing the spring during seating. Verify that the mating bore or guide pin matches the specified hole diameter and wire clearance before assembly. Consult applicable equipment service documentation and any relevant mechanical codes for proper spring replacement procedures.