Gardner Spring 36121G Precision Compression Spring

Product Description

The GARDNER SPRING 36121G is a precision compression spring manufactured from AISI 302 and ASTM A228 music wire with a plain silver finish. It measures 0.72 inches in outside diameter with a 1.25-inch free length and a wire diameter of 0.067 inches. The spring delivers a rated spring rate of 27 lb/in and supports a maximum work load of 22 pounds (97.86 N). Closed and ground ends provide consistent seating and load distribution. This type of compression spring is used by mechanical assemblers, maintenance technicians, and OEM production teams wherever reliable, repeatable spring force is needed in compact applications.

The 36121G suits a wide range of light-duty mechanical assemblies requiring a small-diameter compression spring with controlled load characteristics. Its 0.75-inch hole diameter fit, solid height of 0.403 inches, and music wire construction make it appropriate for instrumentation, valve assemblies, latching mechanisms, and general industrial or commercial equipment. The spring is packaged in quantities of 5, making it practical for bench stock or small-batch assembly work.

Key Features

• Music wire construction meets AISI 302, ASTM A228, and ASTM A313 standards
• Closed and ground end type for flat, stable seating on both faces
• Spring rate of 27 lb/in for predictable, linear load response
• Maximum work load rated at 22 pounds (97.86 N)
• Solid height of 0.403 inches allows use in tight axial clearance applications
• Plain silver finish with no coating to interfere with close-tolerance fits

Compatibility

Designed as an OEM-style precision compression spring suitable for general mechanical assemblies requiring a 0.72-inch OD, 1.25-inch free length spring with closed and ground ends.

Installation Notes

Installation is typically performed by mechanical technicians or assemblers during equipment assembly or maintenance. Confirm the mating bore or guide pin dimensions against the 0.75-inch hole diameter and outside diameter before installation to ensure proper fit without binding. De-energize or de-pressurize any system before disassembling spring-loaded components. Do not compress the spring beyond its solid height of 0.403 inches during installation or operation.