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128CS - 8.50 Inch High Carbon Steel Extension Springs

Inventory Status
In-stock
Estimated Lead Time
In-stock parts: usually ships in 12-24 hours

The 128CS 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 0.625 inches, and a free length of 8.5 inches. It has an initial tension of 3 Pound and a maximum deflection of 7.3 inches. The 128CS has a spring rate of 2.1 inches per pound and can support a maximum load of 19 Pound Force. It features machine hook ends and is designed for regular extension applications.

At Century Spring, we pride ourselves on our fast shipping and extensive stock inventory. We understand the importance of timely delivery and strive to ensure that our customers receive their springs promptly. With our significant stock, including the 128CS, we can fulfill orders quickly and efficiently. Additionally, all of our springs are proudly made in the United States, ensuring high-quality craftsmanship and supporting local manufacturing. Trust Century Spring for all your spring needs.

Unit System
View Spec Sheet
Specs (in standard)
Label Value
Brand Century Spring
Ends Machine Hook
Finish Zinc
Initial Tension 3 lb
Length 8.5 in
Material High Carbon Steel
Outside Diameter 0.625 in
Part Type Standard
Rate 2.1 lbs/in
SKU 128CS
Sugg Max Deflection 7.3 in
Sugg Max Load 19 lbf
Wind Direction Left
Wire Diameter 0.072 in
Specs (in metric)
Label Value
Brand Century Spring
Ends Machine Hook
Finish Zinc
Initial Tension 1.36 kg
Length 215.9 mm
Material High Carbon Steel
Outside Diameter 15.88 mm
Part Type Standard
Rate 0.37 N/mm
SKU 128CS
Sugg Max Deflection 185.42 mm
Sugg Max Load 84.51 N
Wind Direction Left
Wire Diameter 1.83 mm