This browser is no longer supported. Upgrade to Microsoft Edge or switch to a supported browser, like Chrome, Safari, or Firefox, to explore the MW Components website.

We're sorry for the inconvenience.

438CS - 0.44 Inch Music Wire Extension Springs

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

The 438CS 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 0.014 inches and an outside diameter of 0.125 inches. With a free length of 0.44 inches and initial tension of 0.1 pound, it provides reliable extension and tension capabilities. The 438CS has a maximum deflection of 0.53 inches and can handle a maximum load of 1.3 pound force. Its left wind direction and full loop ends ensure secure and stable performance. As a standard extension spring, it is suitable for a wide range of applications.

At Century Spring, we take pride in our fast shipping and extensive stock inventory. We understand the importance of timely delivery, and our efficient shipping process ensures that customers receive their orders promptly. Additionally, our significant stock inventory means that you can count on us to have the springs you need readily available. We are committed to manufacturing our products in the United States, ensuring top-notch quality and supporting local businesses. With Century Spring, you can rely on quick shipping, ample supply, and superior American-made springs for your projects.

Unit System
View Spec Sheet
Specs (in standard)
Label Value
Brand Century Spring
Ends Full Loop
Finish Zinc
Initial Tension 0.1 lb
Length 0.44 in
Material Music Wire
Outside Diameter 0.125 in
Part Type Standard
Rate 2.2 lbs/in
SKU 438CS
Sugg Max Deflection 0.53 in
Sugg Max Load 1.3 lbf
Wind Direction Left
Wire Diameter 0.014 in
Specs (in metric)
Label Value
Brand Century Spring
Ends Full Loop
Finish Zinc
Initial Tension 0.05 kg
Length 11.18 mm
Material Music Wire
Outside Diameter 3.18 mm
Part Type Standard
Rate 0.39 N/mm
SKU 438CS
Sugg Max Deflection 13.46 mm
Sugg Max Load 5.78 N
Wind Direction Left
Wire Diameter 0.36 mm