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428CS - 2.06 Inch Music Wire Extension Springs

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

The 428CS is a regular extension spring manufactured by Century Spring. It is made from high-quality Music Wire and features a durable zinc finish. This spring has a wire diameter of 0.021 Inch and an outside diameter of 0.219 inches, with a free length of 2.06 Inches. It has an initial tension of 0.2 Pound and a maximum deflection of 4.8 Inches. The 428CS has a maximum load capacity of 2.2 Pound Force and a spring rate of 0.42 inches per pound. It is designed with machine hook ends and is suitable for a variety of extension spring applications.

At Century Spring, we take pride in our fast shipping and extensive stock inventory. We understand the importance of timely delivery, which is why we prioritize quick order processing and prompt shipment. Additionally, our commitment to maintaining a substantial stock inventory ensures that our customers have access to the springs they need when they need them. As an American company, we proudly manufacture all our springs in the United States, ensuring the highest quality and supporting local manufacturing. Trust Century Spring for reliable shipping, ample supply, and top-notch springs for your projects.

Unit System
View Spec Sheet
Specs (in standard)
Label Value
Brand Century Spring
Ends Machine Hook
Finish Zinc
Initial Tension 0.2 lb
Length 2.06 in
Material Music Wire
Outside Diameter 0.219 in
Part Type Standard
Rate 0.42 lbs/in
SKU 428CS
Sugg Max Deflection 4.8 in
Sugg Max Load 2.2 lbf
Wind Direction Left
Wire Diameter 0.021 in
Specs (in metric)
Label Value
Brand Century Spring
Ends Machine Hook
Finish Zinc
Initial Tension 0.09 kg
Length 52.32 mm
Material Music Wire
Outside Diameter 5.56 mm
Part Type Standard
Rate 0.07 N/mm
SKU 428CS
Sugg Max Deflection 121.92 mm
Sugg Max Load 9.79 N
Wind Direction Left
Wire Diameter 0.53 mm