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448CS - 1.34 Inch High Carbon Steel Extension Springs

Inventory Status
Estimated Lead Time

The 448CS 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 0.047 inches, an outside diameter of 0.312 inches, and a free length of 1.34 inches. It has an initial tension of 3 Pound and a maximum deflection of 0.51 inches. The 448CS has a spring rate of 19 lbs/inch and a maximum load of 12 Pound Force. It is a full loop spring, meaning the ends are rounded. The 448CS is a standard extension spring suitable for various applications.

At Century Spring, we take pride in our fast shipping and extensive stock inventory. Our products, including the 448CS, are 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.

Download CAD
Unit System
Specs (in standard)
Label Value
Brand Century Spring
Ends Full Loop
Finish Zinc
Initial Tension 3 lb
Length 1.34 in
Material High Carbon Steel
Outside Diameter 0.312 in
Part Type Standard
Rate 19 lbs/in
SKU 448CS
Sugg Max Deflection 0.51 in
Sugg Max Load 12 lbf
Wind Direction Left
Wire Diameter 0.047 in
Specs (in metric)
Label Value
Brand Century Spring
Ends Full Loop
Finish Zinc
Initial Tension 1.36 kg
Length 34.04 mm
Material High Carbon Steel
Outside Diameter 7.92 mm
Part Type Standard
Rate 3.33 N/mm
SKU 448CS
Sugg Max Deflection 12.95 mm
Sugg Max Load 53.38 N
Wind Direction Left
Wire Diameter 1.19 mm