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5105CS - 12.20 Inch High Carbon Steel Extension Springs

The 5105CS is a regular extension spring manufactured by Century Spring. It is made from High Carbon steel and features a gold iridite finish. This spring has a free length of 12.2 inches and an initial tension of 6 pounds. With a maximum deflection of 11 inches and a maximum load of 35 pound force, it offers reliable performance for a variety of applications. The 5105CS has an outside diameter of 1 inch and a wire diameter of 0.105 inches. With a spring rate of 2.6 inches per pound, it provides the necessary flexibility and strength. This spring is left-wound and has full loop ends. It is a standard extension spring, suitable for a range of projects.

At Century Spring, we pride ourselves on our fast shipping and extensive stock inventory. Our products, including the 5105CS, are proudly made in the United States. With our efficient shipping process and ample supply, Century Spring ensures that customers can quickly receive the springs they need for their projects. Trust us to provide high-quality springs that meet your requirements, backed by our commitment to excellent service and reliability.

Unit System
View Spec Sheet
Specs (in standard)
Label Value
Brand Century Spring
Ends Full Loop
Finish Gold Iridite
Initial Tension 6 lb
Length 12.2 in
Material High Carbon Steel
Outside Diameter 1 in
Part Type Standard
Rate 2.6 lbs/in
SKU 5105CS
Sugg Max Deflection 11 in
Sugg Max Load 35 lbf
Wind Direction Left
Wire Diameter 0.105 in
Specs (in metric)
Label Value
Brand Century Spring
Ends Full Loop
Finish Gold Iridite
Initial Tension 2.72 kg
Length 309.88 mm
Material High Carbon Steel
Outside Diameter 25.4 mm
Part Type Standard
Rate 0.46 N/mm
SKU 5105CS
Sugg Max Deflection 279.4 mm
Sugg Max Load 155.68 N
Wind Direction Left
Wire Diameter 2.67 mm
Inventory Status
In-stock
Estimated Lead Time
In-stock parts: usually ships in 12-24 hours
Quantity Price
1 - 49 $13.73
50 - 149 $13.05
150 - 299 $12.36
300 - 499 $11.68
500 - 749 $10.30
750 - 999 $8.93
1000+ Call for price