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5566CS - 3.56 Inch Spring Steel Extension Springs

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

The 5566CS is a regular extension spring manufactured by Century Spring. It is made from spring steel and features a zinc finish. This spring has a wire diameter of 0.05 inches, an outside diameter of 0.437 inches, and a free length of 3.56 inches. It has an initial tension of 2 Pound and a maximum deflection of 3 inches. The 5566CS has a spring rate of 2.7 lbs/inch and can withstand a maximum load of 9.6 Pound Force. It is designed with machine hook ends and has a left wind direction. This standard extension spring is suitable for a variety of applications.

At Century Spring, we take pride in our fast shipping and extensive stock inventory. We understand the importance of getting the right parts quickly, which is why we ensure prompt delivery of our products. With our significant inventory, including the 5566CS, we can meet the demands of any project. And, as a US-based manufacturer, we are committed to producing high-quality springs right here in the United States. Trust Century Spring for reliable shipping, ample supply, and top-notch springs for all your needs.

Unit System
View Spec Sheet
Specs (in standard)
Label Value
Brand Century Spring
Ends Machine Hook
Finish Zinc
Initial Tension 2 lb
Length 3.56 in
Material Spring Steel
Outside Diameter 0.437 in
Part Type Standard
Rate 2.7 lbs/in
SKU 5566CS
Sugg Max Deflection 3 in
Sugg Max Load 9.6 lbf
Wind Direction Left
Wire Diameter 0.05 in
Specs (in metric)
Label Value
Brand Century Spring
Ends Machine Hook
Finish Zinc
Initial Tension 0.91 kg
Length 90.42 mm
Material Spring Steel
Outside Diameter 11.1 mm
Part Type Standard
Rate 0.47 N/mm
SKU 5566CS
Sugg Max Deflection 76.2 mm
Sugg Max Load 42.7 N
Wind Direction Left
Wire Diameter 1.27 mm