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.

B12-31CS - 1.13 Inch Music Wire Compression Springs

Inventory:           
Estimated Lead Time

The B12-31CS is a regular compression spring manufactured by Century Spring. It is made from high-quality Music Wire and has a natural finish. This spring has a wire diameter of 0.025 inches, an outer diameter of 0.406 inches, and a free length of 1.13 inches. It features a total of 17.5 coils and has a solid length of 0.44 inches. With a spring rate of 0.66 lbs/inch and a maximum load capacity of 0.45 Pound Force, this spring offers reliable performance. The B12-31CS is a closed-end spring, ensuring secure and stable compression. It is an ideal choice for a wide range of applications.

At Century Spring, we understand the importance of fast shipping and maintaining a significant stock inventory. We take pride in our products, including the B12-31CS, which are made right here in the United States. With our efficient shipping processes and ample supply, we ensure that our customers can quickly receive the springs they need for their projects. Trust Century Spring for top-quality springs and reliable service.

Download CAD
Unit System
Specs (in standard)
Label Value
Brand Century Spring
Ends Closed & Ground
Finish None
Free Length 1.13 in
Inside Diameter 0.356 in
Material Music Wire
Outside Diameter 0.406 in
Part Type Standard
Rate 0.66 lbs/in
SKU B12-31CS
Solid Length 0.44 in
Suggested Max Deflection 0.69 in
Suggested Max Load 0.45 lbf
Total Coils 17.5
Wire Diameter 0.025 in
Specs (in metric)
Label Value
Brand Century Spring
Ends Closed & Ground
Finish None
Free Length 28.7 mm
Inside Diameter 9.04 mm
Material Music Wire
Outside Diameter 10.31 mm
Part Type Standard
Rate 74.57 N/mm
SKU B12-31CS
Solid Length 11.18 mm
Suggested Max Deflection 17.53 mm
Suggested Max Load 2 N
Total Coils 17.5
Wire Diameter 0.64 mm