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B11-66CS - 1.25 Inch Spring Steel Compression Springs

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Estimated Lead Time

The B11-66CS is a regular compression spring manufactured by Century Spring. It is made from Spring Steel and has a zinc finish. This spring has a wire diameter of 0.125 inches, an outside diameter of 0.703 inches, and a free length of 1.25 inches. It has a spring rate of 428 lbs/inch and a maximum load of 84 Pound Force. The B11-66CS has closed and ground ends. It is a standard compression spring and is suitable for various applications.

At Century Spring, we pride ourselves on fast shipping and maintaining a significant stock inventory. Our products, including the B11-66CS, are proudly made in the United States. With our reliable shipping and ample supply, Century Spring ensures that customers can quickly receive the springs they need for their projects.

Download CAD
Unit System
Specs (in standard)
Label Value
Brand Century Spring
Ends Closed & Ground
Finish Zinc
Free Length 1.25 in
Inside Diameter 0.453 in
Material Spring Steel
Outside Diameter 0.703 in
Part Type Standard
Rate 428 lbs/in
SKU B11-66CS
Solid Length 0.78 in
Suggested Max Deflection 0.2 in
Suggested Max Load 84 lbf
Total Coils 6.25
Wire Diameter 0.125 in
Specs (in metric)
Label Value
Brand Century Spring
Ends Closed & Ground
Finish Zinc
Free Length 31.75 mm
Inside Diameter 11.51 mm
Material Spring Steel
Outside Diameter 17.86 mm
Part Type Standard
Rate 74.94 N/mm
SKU B11-66CS
Solid Length 19.81 mm
Suggested Max Deflection 5.08 mm
Suggested Max Load 373.63 N
Total Coils 6.25
Wire Diameter 3.18 mm