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5178CS - 2.50 Inch High Carbon Steel Extension Springs

The 5178CS 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 0.072 inches, an outside diameter of 0.562 inches, and a free length of 2.5 inches. It has an initial tension of 4 Pound and a maximum deflection of 1.4 inches. The 5178CS has a rate of 12 inches per pound and a maximum load of 22 Pound Force. It features machine hooks on both ends. This standard extension spring is suitable for a variety of applications.

At Century Spring, we take pride in our fast shipping and extensive stock inventory. We understand the importance of getting the right springs quickly, which is why we offer swift delivery. Additionally, all our products, including the 5178CS, are proudly made in the United States. With our reliable shipping and ample supply, Century Spring ensures that you can easily obtain the springs you need for your projects.

Unit System
View Spec Sheet
Specs (in standard)
Label Value
Brand Century Spring
Ends Machine Hook
Finish Zinc
Initial Tension 4 lb
Length 2.5 in
Material High Carbon Steel
Outside Diameter 0.562 in
Part Type Standard
Rate 12 lbs/in
SKU 5178CS
Sugg Max Deflection 1.4 in
Sugg Max Load 22 lbf
Wind Direction Left
Wire Diameter 0.072 in
Specs (in metric)
Label Value
Brand Century Spring
Ends Machine Hook
Finish Zinc
Initial Tension 1.81 kg
Length 63.5 mm
Material High Carbon Steel
Outside Diameter 14.27 mm
Part Type Standard
Rate 2.1 N/mm
SKU 5178CS
Sugg Max Deflection 35.56 mm
Sugg Max Load 97.86 N
Wind Direction Left
Wire Diameter 1.83 mm
Inventory Status
In-stock
Estimated Lead Time
In-stock parts: usually ships in 12-24 hours
Quantity Price
1 - 49 $3.79
50 - 149 $3.61
150 - 299 $3.42
300 - 499 $3.23
500 - 749 $2.85
750 - 999 $2.47
1000+ Call for price