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538CS - 3.13 Inch Spring Steel Extension Springs

Inventory Status
In-stock
Estimated Lead Time
In-stock parts: usually ships in 12-24 hours

The 538CS is a regular extension spring manufactured by Century Spring. It is made from spring steel and has a zinc finish. This spring has a wire diameter of 0.075 inches, an outside diameter of 0.5 inches, and a free length of 3.13 inches. It has an initial tension of 7 pounds and a maximum deflection of 1.2 inches. The 538CS has a spring rate of 17 lbs/inch and a maximum load of 28 pound force. It features machine hook ends and is suitable for various applications.

At Century Spring, we take pride in our fast shipping and extensive stock inventory. We understand the importance of timely delivery and have streamlined our shipping process to ensure that customers receive their springs promptly. Additionally, we maintain a significant stock of springs, including the 538CS, so that customers can easily find the right spring for their needs. As an American company, all of our products are proudly made in the United States. Trust Century Spring for reliable shipping, ample supply, and high-quality springs.

Unit System
View Spec Sheet
Specs (in standard)
Label Value
Brand Century Spring
Ends Machine Hook
Finish Zinc
Initial Tension 7 lb
Length 3.13 in
Material Spring Steel
Outside Diameter 0.5 in
Part Type Standard
Rate 17 lbs/in
SKU 538CS
Sugg Max Deflection 1.2 in
Sugg Max Load 28 lbf
Wind Direction Left
Wire Diameter 0.075 in
Specs (in metric)
Label Value
Brand Century Spring
Ends Machine Hook
Finish Zinc
Initial Tension 3.17 kg
Length 79.5 mm
Material Spring Steel
Outside Diameter 12.7 mm
Part Type Standard
Rate 2.98 N/mm
SKU 538CS
Sugg Max Deflection 30.48 mm
Sugg Max Load 124.54 N
Wind Direction Left
Wire Diameter 1.91 mm