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S-3121CS - 0.75 Inch 302/304 Stainless Steel Compression Springs

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The S-3121CS is a regular compression spring manufactured by Century Spring. It is made from 302/304 Stainless Steel and has a natural finish. This spring has a wire diameter of 0.03 inches, an outside diameter of 0.562 inches, and a free length of 0.75 inches. It has a spring rate of 1.7 lbs/inch and a maximum load of 0.91 Pound Force. The S-3121CS is a closed-end spring, meaning the ends are squared. It consists of 6 total coils and has a solid length of 0.21 inches. This standard compression spring is suitable for various applications.

At Century Spring, we offer fast shipping and maintain a significant stock inventory. Our products, including the S-3121CS, are proudly made 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
Finish None
Free Length 0.75 in
Inside Diameter 0.502 in
Material 302/304 Stainless Steel
Outside Diameter 0.562 in
Part Type Standard
Rate 1.7 lbs/in
SKU S-3121CS
Solid Length 0.21 in
Suggested Max Deflection 0.54 in
Suggested Max Load 0.91 lbf
Total Coils 6
Wire Diameter 0.03 in
Specs (in metric)
Label Value
Brand Century Spring
Ends Closed
Finish None
Free Length 19.05 mm
Inside Diameter 12.75 mm
Material 302/304 Stainless Steel
Outside Diameter 14.27 mm
Part Type Standard
Rate 0.3 N/mm
SKU S-3121CS
Solid Length 5.33 mm
Suggested Max Deflection 13.72 mm
Suggested Max Load 4.05 N
Total Coils 6
Wire Diameter 0.76 mm