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B1-31CS - 0.56 Inch Spring Steel Compression Springs

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Estimated Lead Time

The B1-31CS is a regular compression spring manufactured by Century Spring. It is made from spring steel and has a natural finish. This spring has a wire diameter of 0.045 inches, an outside diameter of 0.453 inches, and a free length of 0.56 inches. It has a spring rate of 35 lbs/inch and a maximum load of 7.7 Pound Force. The B1-31CS is a closed-end spring, and the ends are ground. This standard compression spring is suitable for various applications that require a spring with these specifications.

At Century Spring, we understand the importance of fast shipping and a reliable inventory. We pride ourselves on maintaining a significant stock of springs, including the B1-31CS, and offering fast shipping to ensure our customers receive their springs promptly. Additionally, we are proud to say that all our springs are made in the United States. With Century Spring, you can trust that you will receive high-quality springs quickly and support local manufacturing.

Download CAD
Unit System
Specs (in standard)
Label Value
Brand Century Spring
Ends Closed & Ground
Finish None
Free Length 0.56 in
Inside Diameter 0.363 in
Material Spring Steel
Outside Diameter 0.453 in
Part Type Standard
Rate 35 lbs/in
SKU B1-31CS
Solid Length 0.2 in
Suggested Max Deflection 0.22 in
Suggested Max Load 7.7 lbf
Total Coils 4.5
Wire Diameter 0.045 in
Specs (in metric)
Label Value
Brand Century Spring
Ends Closed & Ground
Finish None
Free Length 14.22 mm
Inside Diameter 9.22 mm
Material Spring Steel
Outside Diameter 11.51 mm
Part Type Standard
Rate 6.13 N/mm
SKU B1-31CS
Solid Length 5.08 mm
Suggested Max Deflection 5.59 mm
Suggested Max Load 34.25 N
Total Coils 4.5
Wire Diameter 1.14 mm