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5550CS - 8.50 Inch Spring Steel Extension Springs

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

The 5550CS 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 0.162 inches, an outside diameter of 1.5 inches, and a free length of 8.5 inches. It has an initial tension of 15 Pound and a maximum deflection of 6.1 inches. The 5550CS has a spring rate of 11 lbs/inch and a maximum load of 80 Pound Force. It features machine hooks on both 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 prompt delivery, which is why we strive to ship our products quickly. Additionally, we maintain a significant stock of springs, including the 5550CS, ensuring that our customers have access to the springs they need when they need them. We are proud to manufacture our springs in the United States, ensuring high-quality standards and supporting local manufacturing. Trust Century Spring for all your spring needs.

Unit System
View Spec Sheet
Specs (in standard)
Label Value
Brand Century Spring
Ends Machine Hook
Finish Zinc
Initial Tension 18 lb
Length 8.5 in
Material Spring Steel
Outside Diameter 1.5 in
Part Type Standard
Rate 11 lbs/in
SKU 5550CS
Sugg Max Deflection 6.1 in
Sugg Max Load 80 lbf
Wind Direction Left
Wire Diameter 0.162 in
Specs (in metric)
Label Value
Brand Century Spring
Ends Machine Hook
Finish Zinc
Initial Tension 8.16 kg
Length 215.9 mm
Material Spring Steel
Outside Diameter 38.1 mm
Part Type Standard
Rate 1.93 N/mm
SKU 5550CS
Sugg Max Deflection 154.94 mm
Sugg Max Load 355.84 N
Wind Direction Left
Wire Diameter 4.11 mm