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M-51CS - 0.50 Inch Music Wire Extension Springs

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The M-51CS 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 0.019 inches, an outer diameter of 0.203 inches, and a free length of 0.5 inches. It has an initial tension of 0.2 Pound and a maximum deflection of 0.81 inches. The M-51CS has a spring rate of 2 lbs/inch and a maximum load of 1.8 Pound Force. It features machine hooks on both ends and is suitable for various applications.

At Century Spring, we offer fast shipping and maintain a significant stock inventory. Our products, including the M-51CS, 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 Machine Hook
Finish Zinc
Initial Tension 0.2 lb
Length 0.5 in
Material Music Wire
Outside Diameter 0.203 in
Part Type Standard
Rate 2 lbs/in
SKU M-51CS
Sugg Max Deflection 0.81 in
Sugg Max Load 1.8 lbf
Wire Diameter 0.019 in
Specs (in metric)
Label Value
Brand Century Spring
Ends Machine Hook
Finish Zinc
Initial Tension 0.09 kg
Length 12.7 mm
Material Music Wire
Outside Diameter 5.16 mm
Part Type Standard
Rate 0.35 N/mm
SKU M-51CS
Sugg Max Deflection 20.57 mm
Sugg Max Load 8.01 N
Wire Diameter 0.48 mm