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B3-31CS - 2.68 Inch Spring Steel Extension Springs

Inventory Status
Estimated Lead Time

The B3-31CS is a regular extension spring manufactured by Century Spring. It is made from spring steel and has a zinc finish. This spring has a wire diameter of 0.047 inches, an outside diameter of 0.25 inches, and a free length of 2.68 inches. It has an initial tension of 5 Pound and a maximum deflection of 0.71 inches. The B3-31CS has a spring rate of 16 lbs/inch and a maximum load of 16 Pound Force. It features machine hook ends and is suitable for various extension spring applications.

At Century Spring, we take pride in our fast shipping and extensive stock inventory. Our products, including the B3-31CS, are proudly made in the United States. With our efficient shipping and ample supply, Century Spring ensures that customers can quickly receive the springs they need for their projects. We are committed to providing high-quality springs and excellent service to meet our customers' needs.

Download CAD
Unit System
Specs (in standard)
Label Value
Brand Century Spring
Ends Machine Hook
Finish Zinc
Initial Tension 5 lb
Length 2.68 in
Material Spring Steel
Outside Diameter 0.25 in
Part Type Standard
Rate 16 lbs/in
SKU B3-31CS
Sugg Max Deflection 0.71 in
Sugg Max Load 16 lbf
Wind Direction Left
Wire Diameter 0.047 in
Specs (in metric)
Label Value
Brand Century Spring
Ends Machine Hook
Finish Zinc
Initial Tension 2.27 kg
Length 68.07 mm
Material Spring Steel
Outside Diameter 6.35 mm
Part Type Standard
Rate 2.8 N/mm
SKU B3-31CS
Sugg Max Deflection 18.03 mm
Sugg Max Load 71.17 N
Wind Direction Left
Wire Diameter 1.19 mm