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420CS - 0.94 Inch Music Wire Extension Springs

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

The 420CS is a regular extension spring manufactured by Century Spring. This spring is made from high-quality music wire and features a durable zinc finish. It has a free length of 0.94 inch and an initial tension of 0.3 pound. With a maximum deflection of 1.1 inch and a maximum load capacity of 2.5 pound force, the 420CS is suitable for a variety of applications. Its wire diameter is 0.02 inch and its outside diameter measures 0.172 inches. The spring has a rate of 2 inches per pound, providing reliable performance. It has machine hook ends and is designed for left wind direction. Century Spring's 420CS extension spring is a versatile and dependable choice for your project.

At Century Spring, we understand the importance of fast shipping and a wide stock inventory. We are proud to offer both to our customers. With our efficient shipping processes, you can expect to receive your order promptly. Additionally, our significant stock inventory ensures that we have the springs you need readily available. As a company based in the United States, we take pride in manufacturing our products locally. When you choose Century Spring, you can trust that you are receiving high-quality springs made right here in the USA.

Unit System
View Spec Sheet
Specs (in standard)
Label Value
Brand Century Spring
Ends Machine Hook
Finish Zinc
Initial Tension 0.3 lb
Length 0.94 in
Material Music Wire
Outside Diameter 0.172 in
Part Type Standard
Rate 2 lbs/in
SKU 420CS
Sugg Max Deflection 1.1 in
Sugg Max Load 2.5 lbf
Wind Direction Left
Wire Diameter 0.02 in
Specs (in metric)
Label Value
Brand Century Spring
Ends Machine Hook
Finish Zinc
Initial Tension 0.14 kg
Length 23.88 mm
Material Music Wire
Outside Diameter 4.37 mm
Part Type Standard
Rate 0.35 N/mm
SKU 420CS
Sugg Max Deflection 27.94 mm
Sugg Max Load 11.12 N
Wind Direction Left
Wire Diameter 0.51 mm