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550CS - 3.75 Inch High Carbon Steel Extension Springs

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

The 550CS is a regular extension spring manufactured by Century Spring. It is made from High Carbon steel and has a zinc finish. This spring has a wire diameter of 0.054 inches, an outer diameter of 0.5 inches, and a free length of 3.75 inches. It has an initial tension of 2 Pound and a maximum deflection of 3.8 inches. The 550CS has a spring rate of 2.3 lbs/inch and a maximum load of 10 Pound Force. It has machine hook ends, and its wind direction is left. The 550CS is a standard extension spring 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 timely delivery, and our efficient shipping process ensures that customers receive their springs promptly. Additionally, our significant stock inventory means that we have a wide range of springs available for immediate shipment. As an American company, we are committed to manufacturing our products in the United States, ensuring high-quality standards and supporting local industries. Trust Century Spring for reliable shipping, ample supply, and superior springs for your projects.

Unit System
View Spec Sheet
Specs (in standard)
Label Value
Brand Century Spring
Ends Machine Hook
Finish Zinc
Initial Tension 2 lb
Length 3.75 in
Material High Carbon Steel
Outside Diameter 0.5 in
Part Type Standard
Rate 2.3 lbs/in
SKU 550CS
Sugg Max Deflection 3.8 in
Sugg Max Load 10 lbf
Wind Direction Left
Wire Diameter 0.054 in
Specs (in metric)
Label Value
Brand Century Spring
Ends Machine Hook
Finish Zinc
Initial Tension 0.91 kg
Length 95.25 mm
Material High Carbon Steel
Outside Diameter 12.7 mm
Part Type Standard
Rate 0.4 N/mm
SKU 550CS
Sugg Max Deflection 96.52 mm
Sugg Max Load 44.48 N
Wind Direction Left
Wire Diameter 1.37 mm