Gardner Spring 36074G Precision Compression Spring

Product Description

The GARDNER SPRING 36074G is a precision compression spring manufactured from music wire (AISI 302 / ASTM A228 / ASTM A313). It features a 0.42-inch outside diameter, a free length of 1.5 inches, and a wire diameter of 0.038 inches. With a spring rate of 7 pounds per inch and a maximum work load of 8 pounds (35.59 N), this spring delivers consistent, repeatable force in compact assemblies. The closed and ground end type provides flat, stable seating. Technicians and assemblers in HVAC, plumbing, and mechanical trades rely on springs like this for valve components, actuators, linkages, and similar load-bearing subassemblies.

This spring is suited for residential and light commercial applications wherever a small-diameter, moderate-rate compression spring is required. Common use cases include HVAC control valve mechanisms, plumbing check-valve internals, electrical actuator return mechanisms, and general mechanical assemblies. Its plain silver finish and music wire construction make it appropriate for dry or lightly lubricated environments where corrosion exposure is minimal. Sold in a package quantity of 5 with a minimum order quantity of 1.

Key Features

• Precision compression spring with closed and ground ends for flat, stable seating
• 0.42-inch outside diameter with a 0.437-inch recommended hole diameter for guided installations
• 1.5-inch free length and 0.381-inch solid height
• Spring rate of 7 pounds per inch with a maximum work load of 8 pounds
• Music wire construction meets AISI 302, ASTM A228, and ASTM A313 standards
• Plain silver finish suitable for dry or lightly lubricated mechanical environments

Compatibility

Designed as a precision OEM-style compression spring for use in HVAC, plumbing, electrical, and general mechanical assemblies requiring a 0.42-inch OD, 1.5-inch free length, 7-pound-per-inch rate spring with closed and ground ends.

Installation Notes

Install and remove compression springs with appropriate hand tools; avoid overcompressing beyond the rated solid height during assembly. Power down or depressurize the system before servicing any valve or actuator assembly containing this spring. Verify the mating bore diameter against the 0.437-inch recommended hole diameter to ensure proper guidance and prevent buckling. Disposal of worn or broken springs should follow local shop safety practices for small metal hardware.