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.

B17-129CS - 2.50 Inch Music Wire Extension Springs

Inventory Status
Estimated Lead Time

The B17-129CS 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 0.015 inch and an outer diameter of 0.281 inches. With a free length of 2.5 inches, it provides a maximum deflection of 22 inches. The B17-129CS has an initial tension of 0.03 pound and a maximum load capacity of 0.63 pound force. It is designed with full loop ends and has a spring rate of 0.03 lbs/inch. This standard extension spring is suitable for a wide range of applications.

At Century Spring, we pride ourselves on our fast shipping and extensive stock inventory. We understand the importance of getting the right springs quickly, which is why we strive to process and ship orders as soon as possible. Additionally, all of our springs, including the B17-129CS, are proudly made in the United States. We prioritize quality and reliability in our manufacturing process to ensure that our customers receive the best products for their needs. With Century Spring, you can trust that you'll receive top-notch springs with efficient delivery.

Unit System
Specs (in standard)
Label Value
Brand Century Spring
Ends Full Loop
Finish Zinc
Initial Tension 0.03 lb
Length 2.5 in
Material Music Wire
Outside Diameter 0.281 in
Part Type Standard
Rate 0.03 lbs/in
SKU B17-129CS
Sugg Max Deflection 22 in
Sugg Max Load 0.63 lbf
Wind Direction Left
Wire Diameter 0.015 in
Specs (in metric)
Label Value
Brand Century Spring
Ends Full Loop
Finish Zinc
Initial Tension 0.01 kg
Length 63.5 mm
Material Music Wire
Outside Diameter 7.14 mm
Part Type Standard
Rate 0.01 N/mm
SKU B17-129CS
Sugg Max Deflection 558.8 mm
Sugg Max Load 2.8 N
Wind Direction Left
Wire Diameter 0.38 mm