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B5-42CS - 1.63 Inch Spring Steel Extension Springs

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Estimated Lead Time

The B5-42CS is a regular extension 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 0.5 inches, and a free length of 1.63 inches. It has an initial tension of 0.8 pound and a maximum deflection of 2.1 inches. The B5-42CS has a maximum load of 6.4 pounds force and a spring rate of 2.6 lbs/inch. It features machine hook ends and is suitable for various extension spring applications.

At Century Spring, we understand the importance of fast shipping and maintaining a significant stock inventory. We take pride in manufacturing our products in the United States, including the B5-42CS. 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 Machine Hook
Finish None
Initial Tension 0.8 lb
Length 1.63 in
Material Spring Steel
Outside Diameter 0.5 in
Part Type Standard
Rate 2.6 lbs/in
SKU B5-42CS
Sugg Max Deflection 2.1 in
Sugg Max Load 6.4 lbf
Wire Diameter 0.045 in
Specs (in metric)
Label Value
Brand Century Spring
Ends Machine Hook
Finish None
Initial Tension 0.36 kg
Length 41.4 mm
Material Spring Steel
Outside Diameter 12.7 mm
Part Type Standard
Rate 0.46 N/mm
SKU B5-42CS
Sugg Max Deflection 53.34 mm
Sugg Max Load 28.47 N
Wire Diameter 1.14 mm