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B1-49CS - 1.38 Inch Music Wire Extension Springs

Inventory Status
Estimated Lead Time

The B1-49CS is a regular extension spring manufactured by Century Spring. It features machine hook ends and is made from high-quality music wire material. This spring has a free length of 1.38 inches and a maximum deflection of 2.5 inches. With an initial tension of 0.3 pounds, it can handle a maximum load of 3.7 pound force. The B1-49CS has an outside diameter of 0.359 inches and a wire diameter of 0.03 inches. Its spring rate is 1.2 lbs/inch. This extension spring is suitable for various applications and is available for purchase.

At Century Spring, we pride ourselves in offering fast shipping and maintaining a significant stock inventory. We understand the importance of timely delivery, and our reliable shipping ensures that you receive your springs quickly. With our ample supply, including the B1-49CS, we guarantee that you can find the springs you need for your projects. To top it off, all our springs are proudly made in the United States, ensuring the highest quality and craftsmanship. Choose Century Spring for your spring needs and experience the convenience and reliability we provide.

Unit System
Specs (in standard)
Label Value
Brand Century Spring
Ends Machine Hook
Finish None
Initial Tension 0.3 lb
Length 1.38 in
Material Music Wire
Outside Diameter 0.359 in
Part Type Standard
Rate 1.2 lbs/in
SKU B1-49CS
Sugg Max Deflection 2.5 in
Sugg Max Load 3.7 lbf
Wind Direction Left
Wire Diameter 0.03 in
Specs (in metric)
Label Value
Brand Century Spring
Ends Machine Hook
Finish None
Initial Tension 0.14 kg
Length 35.05 mm
Material Music Wire
Outside Diameter 9.12 mm
Part Type Standard
Rate 0.21 N/mm
SKU B1-49CS
Sugg Max Deflection 63.5 mm
Sugg Max Load 16.46 N
Wind Direction Left
Wire Diameter 0.76 mm