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B3-1CS - 0.44 Inch Music Wire Extension Springs

Inventory Status
Estimated Lead Time

The B3-1CS is a regular extension spring manufactured by Century Spring. It is made from Music Wire and has a zinc finish. This spring has a wire diameter of 0.021 inches, an outer diameter of 0.188 inches, and a free length of 0.44 inches. It has an initial tension of 0.3 Pound and a maximum deflection of 0.42 inches. The B3-1CS has a spring rate of 5.5 lbs/inch and a maximum load of 2.6 Pound Force. It is a full loop extension spring, meaning the ends are formed into full loops. The B3-1CS is a standard extension spring and is suitable for various applications.

At Century Spring, we offer fast shipping and maintain a significant stock inventory. Our products, including the B3-1CS, are proudly made in the United States. 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 Full Loop
Finish Zinc
Initial Tension 0.3 lb
Length 0.44 in
Material Music Wire
Outside Diameter 0.188 in
Part Type Standard
Rate 5.5 lbs/in
SKU B3-1CS
Sugg Max Deflection 0.42 in
Sugg Max Load 2.6 lbf
Wind Direction Left
Wire Diameter 0.021 in
Specs (in metric)
Label Value
Brand Century Spring
Ends Full Loop
Finish Zinc
Initial Tension 0.14 kg
Length 11.18 mm
Material Music Wire
Outside Diameter 4.78 mm
Part Type Standard
Rate 0.96 N/mm
SKU B3-1CS
Sugg Max Deflection 10.67 mm
Sugg Max Load 11.56 N
Wind Direction Left
Wire Diameter 0.53 mm