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B3-12CS - 0.75 Inch Music Wire Extension Springs

Inventory Status
Estimated Lead Time

The B3-12CS is a regular extension spring manufactured by Century Spring. It is made from Music Wire and has no finish. This spring has a wire diameter of 0.013 inches, an outer diameter of 0.125 inches, and a free length of 0.75 inches. It has an initial tension of 0.09 Pound and a maximum deflection of 1.5 inches. With a maximum load of 1 Pound Force, this spring is suitable for various applications. The B3-12CS features full loop ends, ensuring secure attachment and reliable performance.

At Century Spring, we take pride in our fast shipping and extensive stock inventory. We understand the importance of timely delivery for our customers' projects. That's why we offer efficient shipping options to ensure you receive the springs you need in a timely manner. Additionally, all our products, including the B3-12CS, are proudly made in the United States. We prioritize quality and craftsmanship, and our commitment to manufacturing excellence is reflected in the durability and reliability of our springs. Trust Century Spring for all your spring needs.

Download CAD
Unit System
Specs (in standard)
Label Value
Brand Century Spring
Ends Full Loop
Finish None
Initial Tension 0.09 lb
Length 0.75 in
Material Music Wire
Outside Diameter 0.125 in
Part Type Standard
Rate 0.62 lbs/in
SKU B3-12CS
Sugg Max Deflection 1.5 in
Sugg Max Load 1 lbf
Wind Direction Left
Wire Diameter 0.013 in
Specs (in metric)
Label Value
Brand Century Spring
Ends Full Loop
Finish None
Initial Tension 0.04 kg
Length 19.05 mm
Material Music Wire
Outside Diameter 3.18 mm
Part Type Standard
Rate 0.11 N/mm
SKU B3-12CS
Sugg Max Deflection 38.1 mm
Sugg Max Load 4.45 N
Wind Direction Left
Wire Diameter 0.33 mm