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The GARDNER SPRING MC040-0140-S is a precision compression spring manufactured from stainless steel with a plain finish. It features an outside diameter of 0.217 inches and a free length of 0.551 inches, making it a compact, high-tolerance spring suited for precision assemblies. The spring delivers a maximum work load of 6.7 pounds and a spring rate of 4.07 inch-pounds per inch. Closed ends provide stable seating against mating surfaces without additional machining. This part is appropriate for use by mechanical engineers, maintenance technicians, and OEM assemblers working in instrumentation, valve, or electromechanical applications.
This compression spring fits into precision assemblies where tight dimensional tolerances and consistent load characteristics are required. Its stainless steel construction supports use in environments with exposure to moisture or mild corrosives, common in fluid handling, valve actuation, and light industrial equipment. The compact form factor suits applications in medical devices, electronics hardware, instrumentation panels, and small mechanical assemblies where repeatable spring force is critical.
Designed as a precision OEM-style compression spring for use in mechanical assemblies requiring an 0.217-inch outside diameter closed-end compression spring with stainless steel construction.
Installation is typically performed by mechanical technicians or OEM assemblers during equipment build or maintenance. Ensure the mating bore or seat is clean and free of debris before seating the spring. Avoid overcompressing the spring beyond its solid height of 0.167 inches, as this can cause permanent set and loss of load characteristics. Verify spring rate and load requirements against the application specification before substituting this part.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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