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B12-30CS - 1 Inch Spring Steel Compression Springs

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Estimated Lead Time

The B12-30CS is a regular compression spring manufactured by Century Spring. It is made from Spring Steel and has no finish. This spring has a wire diameter of 0.041 inches, an outside diameter of 0.36 inches, and a free length of 1 inches. It has an inside diameter of 0.278 Inch and a solid length of 0.35 inches. With a spring rate of 19 lbs/inch, it can provide a maximum deflection of 0.38 Inch and withstand a maximum load of 7.3 Pound Force. The B12-30CS is a closed and ground-end spring designed for various applications.

Century Spring offers fast shipping and maintains a significant stock inventory. We are proud to manufacture our springs in the United States. With our efficient shipping and ample supply, Century Spring ensures that customers can promptly receive the springs they need for their projects.

Download CAD
Unit System
Specs (in standard)
Label Value
Brand Century Spring
Ends Closed & Ground
Finish None
Free Length 1 in
Inside Diameter 0.278 in
Material Spring Steel
Outside Diameter 0.36 in
Part Type Standard
Rate 19 lbs/in
SKU B12-30CS
Solid Length 0.35 in
Suggested Max Deflection 0.38 in
Suggested Max Load 7.3 lbf
Total Coils 8.5
Wire Diameter 0.041 in
Specs (in metric)
Label Value
Brand Century Spring
Ends Closed & Ground
Finish None
Free Length 25.4 mm
Inside Diameter 7.06 mm
Material Spring Steel
Outside Diameter 9.14 mm
Part Type Standard
Rate 3.33 N/mm
SKU B12-30CS
Solid Length 8.89 mm
Suggested Max Deflection 9.65 mm
Suggested Max Load 32.47 N
Total Coils 8.5
Wire Diameter 1.04 mm