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5878CS - 4.50 Inch Spring Steel Extension Springs

The 5878CS is a regular extension spring manufactured by Century Spring. It is made from spring steel and has a natural finish. This spring has a wire diameter of 0.056 inches, an outside diameter of 0.5 inches, and a free length of 4.5 inches. It has an initial tension of 2 Pound and a maximum deflection of 4.3 inches. The 5878CS has a spring rate of 2.3 inches per pound and a maximum load of 12 Pound Force. It is a full loop spring, meaning the ends are closed. The 5878CS is a standard extension spring suitable for various applications.

At Century Spring, we pride ourselves on our fast shipping and extensive stock inventory. We understand the importance of timely delivery for our customers' projects. That's why we work diligently to ensure that our products, including the 5878CS, are readily available for shipment. Additionally, we are proud to say that all our springs are made in the United States. By manufacturing locally, we maintain high-quality standards and support the domestic economy. Experience the convenience and reliability of Century Spring's fast shipping and American-made products for all your spring needs.

Unit System
View Spec Sheet
Specs (in standard)
Label Value
Brand Century Spring
Ends Full Loop
Finish None
Initial Tension 2 lb
Length 4.5 in
Material Spring Steel
Outside Diameter 0.5 in
Part Type Standard
Rate 2.3 lbs/in
SKU 5878CS
Sugg Max Deflection 4.3 in
Sugg Max Load 12 lbf
Wind Direction Left
Wire Diameter 0.056 in
Specs (in metric)
Label Value
Brand Century Spring
Ends Full Loop
Finish None
Initial Tension 0.91 kg
Length 114.3 mm
Material Spring Steel
Outside Diameter 12.7 mm
Part Type Standard
Rate 0.4 N/mm
SKU 5878CS
Sugg Max Deflection 109.22 mm
Sugg Max Load 53.38 N
Wind Direction Left
Wire Diameter 1.42 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 $3.66
50 - 149 $3.48
150 - 299 $3.30
300 - 499 $3.12
500 - 749 $2.75
750 - 999 $2.38
1000+ Call for price