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5580CS - 3.81 Inch Spring Steel Extension Springs

The 5580CS is a regular extension spring manufactured by Century Spring. It is made from spring steel with a zinc finish. This spring has a wire diameter of 0.072 inches, an outside diameter of 0.578 inches, and a free length of 3.81 inches. It has an initial tension of 4.6 Pound and a maximum deflection of 2.3 inches. The 5580CS has a maximum load of 21 Pound Force and a spring rate of 7.4 inches per pound. It features full loop ends and is 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, which is why we ensure that our products, including the 5580CS, are readily available. As an American manufacturer, all our springs are proudly made in the United States. With Century Spring, you can count on reliable shipping and a wide selection of springs to meet your needs.

Unit System
View Spec Sheet
Specs (in standard)
Label Value
Brand Century Spring
Ends Full Loop
Finish Zinc
Initial Tension 4.6 lb
Length 3.81 in
Material Spring Steel
Outside Diameter 0.578 in
Part Type Standard
Rate 7.4 lbs/in
SKU 5580CS
Sugg Max Deflection 2.3 in
Sugg Max Load 21 lbf
Wind Direction Left
Wire Diameter 0.072 in
Specs (in metric)
Label Value
Brand Century Spring
Ends Full Loop
Finish Zinc
Initial Tension 2.09 kg
Length 96.77 mm
Material Spring Steel
Outside Diameter 14.68 mm
Part Type Standard
Rate 1.3 N/mm
SKU 5580CS
Sugg Max Deflection 58.42 mm
Sugg Max Load 93.41 N
Wind Direction Left
Wire Diameter 1.83 mm
Inventory Status
In-stock
Estimated Lead Time
In-stock parts: usually ships in 12-24 hours
Quantity Price
1 - 49 $3.96
50 - 149 $3.77
150 - 299 $3.57
300 - 499 $3.37
500 - 749 $2.97
750 - 999 $2.58
1000+ Call for price