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S-520CS - 1.25 Inch 302/304 Stainless Steel Extension Springs

Inventory Status
Estimated Lead Time

The S-520CS is a regular extension spring manufactured by Century Spring. It is made from 302/304 Stainless Steel, ensuring durability and resistance to corrosion. This spring has a wire diameter of 0.018 Inch and an outside diameter of 0.188 inches. It has a free length of 1.25 Inch and a maximum deflection of 2.3 inches. The S-520CS has an initial tension of 0.1 Pound and a spring rate of 0.36 lbs/inch. With a maximum load of 0.95 Pound Force, this extension spring is suitable for a variety of applications. It features full loop ends, providing secure attachment points.

At Century Spring, we prioritize fast shipping and maintain a significant stock inventory. We are proud to manufacture our springs in the United States, ensuring high-quality products. Whether you need springs for industrial, automotive, or household applications, Century Spring is dedicated to delivering reliable and efficient service. With our extensive inventory and efficient shipping processes, you can trust us to provide the springs you need, when you need them.

Download CAD
Unit System
Specs (in standard)
Label Value
Brand Century Spring
Ends Full Loop
Finish None
Initial Tension 0.1 lb
Length 1.25 in
Material 302/304 Stainless Steel
Outside Diameter 0.188 in
Part Type Standard
Rate 0.36 lbs/in
SKU S-520CS
Sugg Max Deflection 2.3 in
Sugg Max Load 0.95 lbf
Wind Direction Left
Wire Diameter 0.018 in
Specs (in metric)
Label Value
Brand Century Spring
Ends Full Loop
Finish None
Initial Tension 0.05 kg
Length 31.75 mm
Material 302/304 Stainless Steel
Outside Diameter 4.78 mm
Part Type Standard
Rate 0.06 N/mm
SKU S-520CS
Sugg Max Deflection 58.42 mm
Sugg Max Load 4.23 N
Wind Direction Left
Wire Diameter 0.46 mm