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81011CS - 7 Inch Music Wire Extension Springs

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Estimated Lead Time

The 81011CS 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 0.115 inches, an outer diameter of 1 inches, and a free length of 7 inches. It has an initial tension of 5 Pound and a maximum deflection of 6.5 inches. The 81011CS has a spring rate of 8.1 lbs/inch and a maximum load of 58 Pound Force. It is a full loop spring, meaning the ends are rounded. The 81011CS is a standard extension spring suitable for various applications.

Century Spring offers fast shipping and maintains a significant stock inventory. We are proud to manufacture our products, including the 81011CS, 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 None
Initial Tension 5 lb
Length 7 in
Material Music Wire
Outside Diameter 1 in
Part Type Standard
Rate 8.1 lbs/in
SKU 81011CS
Sugg Max Deflection 6.5 in
Sugg Max Load 58 lbf
Wire Diameter 0.115 in
Specs (in metric)
Label Value
Brand Century Spring
Ends Full Loop
Finish None
Initial Tension 2.27 kg
Length 177.8 mm
Material Music Wire
Outside Diameter 25.4 mm
Part Type Standard
Rate 1.42 N/mm
SKU 81011CS
Sugg Max Deflection 165.1 mm
Sugg Max Load 257.98 N
Wire Diameter 2.92 mm