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577CS - 2.50 Inch Spring Steel Extension Springs

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

The 577CS 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 0.044 inches, an outer diameter of 0.359 inches, and a free length of 2.5 inches. It has an initial tension of 1 Pound and a maximum deflection of 1.7 inches. The 577CS has a spring rate of 4.1 lbs/inch and a maximum load of 8.6 Pound Force. It is a left-wound spring with full loop ends. The 577CS is a standard extension spring suitable for a wide range of applications.

At Century Spring, we take pride in our fast shipping and extensive stock inventory. We understand the importance of timely delivery, which is why we ensure that your order is processed and shipped promptly. Additionally, with our significant stock inventory, you can count on us to have the springs you need readily available. As a company based in the United States, we are committed to producing high-quality springs that meet industry standards. When you choose Century Spring, you can trust that you are getting reliable products made right here in the USA.

Unit System
View Spec Sheet
Specs (in standard)
Label Value
Brand Century Spring
Ends Full Loop
Finish Zinc
Initial Tension 1 lb
Length 2.5 in
Material Spring Steel
Outside Diameter 0.359 in
Part Type Standard
Rate 4.1 lbs/in
SKU 577CS
Sugg Max Deflection 1.7 in
Sugg Max Load 8.6 lbf
Wind Direction Left
Wire Diameter 0.044 in
Specs (in metric)
Label Value
Brand Century Spring
Ends Full Loop
Finish Zinc
Initial Tension 0.45 kg
Length 63.5 mm
Material Spring Steel
Outside Diameter 9.12 mm
Part Type Standard
Rate 0.72 N/mm
SKU 577CS
Sugg Max Deflection 43.18 mm
Sugg Max Load 38.25 N
Wind Direction Left
Wire Diameter 1.12 mm