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B5-49CS - 2.75 Inch Spring Steel Extension Springs

Inventory Status
Estimated Lead Time

The B5-49CS is a regular extension spring manufactured by Century Spring. This spring is made from spring steel and does not have a finish. It has a free length of 2.75 inches and an initial tension of 3 pounds. The maximum deflection of this spring is 1.8 inches, and it can handle a maximum load of 17 pound force. The outside diameter of the B5-49CS is 0.5 inches, and it has a wire diameter of 0.0625 inches. With a spring rate of 7.7 lbs/inch, this left-wind spring features machine hooks on both ends.

At Century Spring, we pride ourselves on our fast shipping and extensive stock inventory. Our springs, including the B5-49CS, are proudly made in the United States. Whether you need springs for industrial or residential applications, we have you covered. With our efficient 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 3 lb
Length 2.75 in
Material Spring Steel
Outside Diameter 0.5 in
Part Type Standard
Rate 7.7 lbs/in
SKU B5-49CS
Sugg Max Deflection 1.8 in
Sugg Max Load 17 lbf
Wind Direction Left
Wire Diameter 0.0625 in
Specs (in metric)
Label Value
Brand Century Spring
Ends Machine Hook
Finish None
Initial Tension 1.36 kg
Length 69.85 mm
Material Spring Steel
Outside Diameter 12.7 mm
Part Type Standard
Rate 1.35 N/mm
SKU B5-49CS
Sugg Max Deflection 45.72 mm
Sugg Max Load 75.62 N
Wind Direction Left
Wire Diameter 1.59 mm