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S-509CS - 1.31 Inch 302/304 Stainless Steel Extension Springs

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Estimated Lead Time

The S-509CS is a regular extension spring manufactured by Century Spring. It is made from 302/304 Stainless Steel and has a wire diameter of 0.017 inches. This spring has a free length of 1.31 Inch and a maximum deflection of 0.88 inches. It has an initial tension of 0.3 Pound and a maximum load of 1.5 Pound Force. The S-509CS is a left wind spring with full loop ends. With its reliable performance and high-quality construction, this regular extension spring is suitable for a variety of applications.

At Century Spring, we take pride in providing fast shipping and maintaining a significant stock inventory. Our products, including the S-509CS, are proudly made in the United States. With our efficient shipping process and ample supply, we ensure that our customers can quickly receive the springs they need for their projects. Trust Century Spring for all your spring needs.

Download CAD
Unit System
Specs (in standard)
Label Value
Brand Century Spring
Ends Full Loop
Finish None
Initial Tension 0.3 lb
Length 1.31 in
Material 302/304 Stainless Steel
Outside Diameter 0.125 in
Part Type Standard
Rate 1.4 lbs/in
SKU S-509CS
Sugg Max Deflection 0.88 in
Sugg Max Load 1.5 lbf
Wire Diameter 0.017 in
Specs (in metric)
Label Value
Brand Century Spring
Ends Full Loop
Finish None
Initial Tension 0.14 kg
Length 33.27 mm
Material 302/304 Stainless Steel
Outside Diameter 3.18 mm
Part Type Standard
Rate 0.25 N/mm
SKU S-509CS
Sugg Max Deflection 22.35 mm
Sugg Max Load 6.67 N
Wire Diameter 0.43 mm