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S-618CS - 1.56 Inch 302/304 Stainless Steel Extension Springs

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The S-618CS is a regular extension 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 0.041 inches, an outer diameter of 0.25 inches, and a free length of 1.56 inches. It has an initial tension of 2 Pound and a maximum deflection of 0.53 inches. The S-618CS has a spring rate of 14 lbs/inch and a maximum load of 9.8 Pound Force. It features machine hook ends and a left wind direction. This extension spring is suitable for various applications.

At Century Spring, we take pride in our fast shipping and extensive stock inventory. Our springs, including the S-618CS, are proudly made in the United States. With our efficient shipping process 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 Machine Hook
Finish None
Initial Tension 2 lb
Length 1.56 in
Material 302/304 Stainless Steel
Outside Diameter 0.25 in
Part Type Standard
Rate 14 lbs/in
SKU S-618CS
Sugg Max Deflection 0.53 in
Sugg Max Load 9.8 lbf
Wire Diameter 0.041 in
Specs (in metric)
Label Value
Brand Century Spring
Ends Machine Hook
Finish None
Initial Tension 0.91 kg
Length 39.62 mm
Material 302/304 Stainless Steel
Outside Diameter 6.35 mm
Part Type Standard
Rate 2.45 N/mm
SKU S-618CS
Sugg Max Deflection 13.46 mm
Sugg Max Load 43.59 N
Wire Diameter 1.04 mm