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103CS - 7.50 Inch High Carbon Steel Extension Springs

Inventory Status
Estimated Lead Time

The 103CS 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 0.091 inches, an outside diameter of 1.125 inches, and a free length of 7.5 inches. It has an initial tension of 3 Pound and a maximum deflection of 13 inches. The 103CS has a spring rate of 1.3 lbs/inch and a maximum load of 20 Pound Force. It features machine hook ends and is suitable for various applications.

At Century Spring, we take pride in our fast shipping and extensive stock inventory. We understand the importance of quick delivery and strive to ensure that our customers receive their springs promptly. Additionally, all of our products, including the 103CS, are proudly made in the United States. With our reliable shipping and ample supply, Century Spring is your trusted source for high-quality springs for any project.

Download CAD
Unit System
Specs (in standard)
Label Value
Brand Century Spring
Ends Machine Hook
Finish Zinc
Initial Tension 3 lb
Length 7.5 in
Material High Carbon Steel
Outside Diameter 1.125 in
Part Type Standard
Rate 1.3 lbs/in
SKU 103CS
Sugg Max Deflection 13 in
Sugg Max Load 20 lbf
Wind Direction Left
Wire Diameter 0.091 in
Specs (in metric)
Label Value
Brand Century Spring
Ends Machine Hook
Finish Zinc
Initial Tension 1.36 kg
Length 190.5 mm
Material High Carbon Steel
Outside Diameter 28.58 mm
Part Type Standard
Rate 0.23 N/mm
SKU 103CS
Sugg Max Deflection 330.2 mm
Sugg Max Load 88.96 N
Wind Direction Left
Wire Diameter 2.31 mm