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3987CS - 4 Inch Spring Steel Compression Springs

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Estimated Lead Time

The 3987CS is a regular compression spring manufactured by Century Spring. It is made from Spring Steel and has a zinc finish. This spring has a wire diameter of 0.177 inches, an outer diameter of 1.375 inches, and a free length of 4 inches. It has a spring rate of 80 lbs/inch and a maximum load of 119 Pound Force. The 3987CS is a closed-end spring, meaning the ends are squared and ground. It is a standard compression spring suitable for various applications.

Century Spring offers fast shipping and maintains a significant stock inventory. We are proud to manufacture our products, including the 3987CS, in the United States. With our reliable shipping and ample supply, Century Spring ensures that customers can quickly receive the springs they need for their projects.

Download CAD
Unit System
Specs (in standard)
Label Value
Brand Century Spring
Ends Closed & Ground
Finish Zinc
Free Length 4 in
Inside Diameter 1.021 in
Material Spring Steel
Outside Diameter 1.375 in
Part Type Standard
Rate 80 lbs/in
SKU 3987CS
Solid Length 2.17 in
Suggested Max Deflection 1.5 in
Suggested Max Load 119 lbf
Total Coils 12.3
Wire Diameter 0.177 in
Specs (in metric)
Label Value
Brand Century Spring
Ends Closed & Ground
Finish Zinc
Free Length 101.6 mm
Inside Diameter 25.93 mm
Material Spring Steel
Outside Diameter 34.93 mm
Part Type Standard
Rate 14.01 N/mm
SKU 3987CS
Solid Length 55.12 mm
Suggested Max Deflection 38.1 mm
Suggested Max Load 529.31 N
Total Coils 12.3
Wire Diameter 4.5 mm