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B5-37CS - 2.78 Inch Spring Steel Extension Springs

Inventory Status
Estimated Lead Time

The B5-37CS is a regular extension spring manufactured by Century Spring. It is made from spring steel and has a natural finish. This spring has a free length of 2.78 inches and an outside diameter of 0.359 inches. It has an initial tension of 4 pounds and a maximum deflection of 1.1 inches. The B5-37CS has a spring rate of 12 lbs/inch and can withstand a maximum load of 17 pound force. It features machine hooks on both ends and is wound in a left-hand direction. This extension spring is designed for a variety of applications and is a reliable choice for your needs.

At Century Spring, we take pride in our fast shipping and extensive stock inventory. We understand the importance of receiving your springs promptly, which is why we prioritize efficient shipping. Additionally, our significant stock inventory ensures that we have the springs you need readily available. All our springs, including the B5-37CS, are proudly made in the United States. By choosing Century Spring, you can trust that you are getting high-quality products manufactured right here in the USA.

Download CAD
Unit System
Specs (in standard)
Label Value
Brand Century Spring
Ends Machine Hook
Finish None
Initial Tension 4 lb
Length 2.78 in
Material Spring Steel
Outside Diameter 0.359 in
Part Type Standard
Rate 12 lbs/in
SKU B5-37CS
Sugg Max Deflection 1.1 in
Sugg Max Load 17 lbf
Wind Direction Left
Wire Diameter 0.056 in
Specs (in metric)
Label Value
Brand Century Spring
Ends Machine Hook
Finish None
Initial Tension 1.81 kg
Length 70.61 mm
Material Spring Steel
Outside Diameter 9.12 mm
Part Type Standard
Rate 2.1 N/mm
SKU B5-37CS
Sugg Max Deflection 27.94 mm
Sugg Max Load 75.62 N
Wind Direction Left
Wire Diameter 1.42 mm