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5145CS - 8.50 Inch Spring Steel Extension Springs

Inventory Status
Estimated Lead Time

The 5145CS is a regular extension spring manufactured by Century Spring. This spring is made from spring steel and has a zinc finish. It has a wire diameter of 0.065 inches, an outside diameter of 0.812 inches, and a free length of 8.5 inches. The 5145CS has a spring rate of 0.54 lbs/inch and a maximum load of 11 Pound Force. It is a double looped spring, which means it has loops on both ends. The 5145CS is a standard extension spring suitable for various applications.

At Century Spring, we offer fast shipping and maintain a significant stock inventory. Our products, including the 5145CS, are proudly made in the United States. With our reliable shipping services 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 Double Loop
Finish Zinc
Initial Tension 1 lb
Length 8.5 in
Material Spring Steel
Outside Diameter 0.812 in
Part Type Standard
Rate 0.54 lbs/in
SKU 5145CS
Sugg Max Deflection 18 in
Sugg Max Load 11 lbf
Wind Direction Left
Wire Diameter 0.065 in
Specs (in metric)
Label Value
Brand Century Spring
Ends Double Loop
Finish Zinc
Initial Tension 0.45 kg
Length 215.9 mm
Material Spring Steel
Outside Diameter 20.62 mm
Part Type Standard
Rate 0.09 N/mm
SKU 5145CS
Sugg Max Deflection 457.2 mm
Sugg Max Load 48.93 N
Wind Direction Left
Wire Diameter 1.65 mm