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4070CS - 15.30 Inch Spring Steel Extension Springs

The 4070CS is a regular extension spring manufactured by Century Spring. It features machine hook ends and is made from spring steel. With a free length of 15.3 inches and an initial tension of 19 pounds, this spring offers a maximum deflection of 9 inches and can handle a maximum load of 89 pound force. It has an outside diameter of 1.25 inches and a wire diameter of 0.156 inches. The spring rate is 7.7 inches per pound. The 4070CS is a reliable and versatile extension spring suitable for various applications.

At Century Spring, we take pride in our fast shipping and extensive stock inventory. We understand the importance of timely delivery, and our efficient shipping ensures that you receive your springs promptly. Additionally, our significant stock inventory means we have a wide range of springs readily available, including the 4070CS. As a company committed to quality, all our springs are proudly made in the United States. When you choose Century Spring, you can trust that you're getting top-notch products and exceptional service.

Unit System
View Spec Sheet
Specs (in standard)
Label Value
Brand Century Spring
Ends Machine Hook
Finish None
Initial Tension 19 lb
Length 15.3 in
Material Spring Steel
Outside Diameter 1.25 in
Part Type Standard
Rate 7.7 lbs/in
SKU 4070CS
Sugg Max Deflection 9 in
Sugg Max Load 89 lbf
Wind Direction Left
Wire Diameter 0.156 in
Specs (in metric)
Label Value
Brand Century Spring
Ends Machine Hook
Finish None
Initial Tension 8.62 kg
Length 388.62 mm
Material Spring Steel
Outside Diameter 31.75 mm
Part Type Standard
Rate 1.35 N/mm
SKU 4070CS
Sugg Max Deflection 228.6 mm
Sugg Max Load 395.87 N
Wind Direction Left
Wire Diameter 3.96 mm
Inventory Status
In-stock
Estimated Lead Time
In-stock parts: usually ships in 12-24 hours

Pricing reflects the base un-configured part price. Final per piece price including configured options will be calculated once a quantity is entered in the field above.

Quantity Price
1 - 49 $31.39
50 - 149 $29.83
150 - 299 $28.26
300 - 499 $26.69
500 - 749 $23.55
750 - 999 $20.41
1000+ Call for price