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S-631CS - 5 Inch 302/304 Stainless Steel Extension Springs

Inventory Status
Estimated Lead Time

The S-631CS 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 0.085 inches, an outside diameter of 0.843 inches, and a free length of 5 inches. It has an initial tension of 3 Pound and a maximum deflection of 4.9 inches. The S-631CS has a spring rate of 3.7 lbs/inch and a maximum load of 22 Pound Force. It is a full loop end spring, meaning the ends are rounded. The S-631CS is a standard extension spring suitable for various applications.

At Century Spring, we pride ourselves on our fast shipping and extensive stock inventory. We understand the importance of timely delivery and ensuring that our customers have access to the springs they need when they need them. All our products, including the S-631CS, are proudly made in the United States. With our reliable shipping and ample supply, Century Spring is committed to providing exceptional service and quality products for all your spring needs.

Download CAD
Unit System
Specs (in standard)
Label Value
Brand Century Spring
Ends Full Loop
Finish None
Initial Tension 3 lb
Length 5 in
Material 302/304 Stainless Steel
Outside Diameter 0.843 in
Part Type Standard
Rate 3.7 lbs/in
SKU S-631CS
Sugg Max Deflection 4.9 in
Sugg Max Load 22 lbf
Wind Direction Left
Wire Diameter 0.085 in
Specs (in metric)
Label Value
Brand Century Spring
Ends Full Loop
Finish None
Initial Tension 1.36 kg
Length 127 mm
Material 302/304 Stainless Steel
Outside Diameter 21.41 mm
Part Type Standard
Rate 0.65 N/mm
SKU S-631CS
Sugg Max Deflection 124.46 mm
Sugg Max Load 97.86 N
Wind Direction Left
Wire Diameter 2.16 mm