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5851CS - 3.50 Inch Spring Steel Extension Springs

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

The 5851CS 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 0.041 inches, an outside diameter of 0.25 inches, and a free length of 3.5 inches. It has an initial tension of 3 Pound and a maximum deflection of 1.4 inches. The 5851CS has a spring rate of 5.6 lbs/inch and a maximum load of 10 Pound Force. It features full loop ends, indicating that both ends of the spring form a complete loop. The 5851CS is a standard extension spring suitable for various applications.

At Century Spring, we pride ourselves on our fast shipping and extensive stock inventory. As an American company, all our springs, including the 5851CS, are proudly made in the United States. With our efficient shipping and ample supply, Century Spring ensures that customers can quickly receive the springs they need for their projects.

Unit System
View Spec Sheet
Specs (in standard)
Label Value
Brand Century Spring
Ends Full Loop
Finish Zinc
Initial Tension 3 lb
Length 3.5 in
Material Spring Steel
Outside Diameter 0.25 in
Part Type Standard
Rate 5.6 lbs/in
SKU 5851CS
Sugg Max Deflection 1.4 in
Sugg Max Load 10 lbf
Wind Direction Left
Wire Diameter 0.041 in
Specs (in metric)
Label Value
Brand Century Spring
Ends Full Loop
Finish Zinc
Initial Tension 1.36 kg
Length 88.9 mm
Material Spring Steel
Outside Diameter 6.35 mm
Part Type Standard
Rate 0.98 N/mm
SKU 5851CS
Sugg Max Deflection 35.56 mm
Sugg Max Load 44.48 N
Wind Direction Left
Wire Diameter 1.04 mm