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143CS - 8.50 Inch High Carbon Steel Extension Springs

Inventory Status
Low Stock

The 143CS spring 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 0.105 Inch and an outside diameter of 0.938 inches. It has a free length of 8.5 Inches and an initial tension of 7 Pounds. The 143CS has a spring rate of 4.4 inches per pound and a maximum load of 38 Pound Force. It features machine hook ends and a left wind direction. This standard extension spring is ideal for a variety of applications.

At Century Spring, we take pride in our fast shipping and extensive stock inventory. We understand the importance of timely delivery, which is why we strive to ship your orders promptly. With our significant stock of springs, including the 143CS, you can rest assured that we have the products you need readily available. Additionally, all our springs are proudly made in the United States, ensuring high-quality craftsmanship and supporting local manufacturing. Trust Century Spring for reliable shipping, ample supply, and top-notch American-made springs.

Unit System
View Spec Sheet
Specs (in standard)
Label Value
Brand Century Spring
Ends Machine Hook
Finish Zinc
Initial Tension 7 lb
Length 8.5 in
Material High Carbon Steel
Outside Diameter 0.938 in
Part Type Standard
Rate 4.4 lbs/in
SKU 143CS
Sugg Max Deflection 7.1 in
Sugg Max Load 38 lbf
Wind Direction Left
Wire Diameter 0.105 in
Specs (in metric)
Label Value
Brand Century Spring
Ends Machine Hook
Finish Zinc
Initial Tension 3.17 kg
Length 215.9 mm
Material High Carbon Steel
Outside Diameter 23.83 mm
Part Type Standard
Rate 0.77 N/mm
SKU 143CS
Sugg Max Deflection 180.34 mm
Sugg Max Load 169.02 N
Wind Direction Left
Wire Diameter 2.67 mm