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5103CS - 1.38 Inch Music Wire Extension Springs

Inventory Status
Estimated Lead Time

The 5103CS is a regular extension spring manufactured by Century Spring. It features a machine hook on both ends and has a zinc finish. This spring has a free length of 1.38 inches and an initial tension of 0.7 pounds. Made from Music Wire, it can deflect up to 1.1 inches and handle a maximum load of 4.9 pound force. With an outside diameter of 0.203 inches and a wire diameter of 0.027 inches, this spring has a rate of 3.9 lbs/inch. The 5103CS is a left-wound spring and is suitable for a variety of applications.

At Century Spring, we take pride in our fast shipping and substantial stock inventory. We are committed to providing our customers with high-quality springs, including the 5103CS, which are made right here in the United States. With our efficient shipping process and extensive product availability, Century Spring ensures that you can rely on us to promptly deliver the springs you need for your projects.

Unit System
Specs (in standard)
Label Value
Brand Century Spring
Ends Machine Hook
Finish Zinc
Initial Tension 0.7 lb
Length 1.38 in
Material Music Wire
Outside Diameter 0.203 in
Part Type Standard
Rate 3.9 lbs/in
SKU 5103CS
Sugg Max Deflection 1.1 in
Sugg Max Load 4.9 lbf
Wind Direction Left
Wire Diameter 0.027 in
Specs (in metric)
Label Value
Brand Century Spring
Ends Machine Hook
Finish Zinc
Initial Tension 0.32 kg
Length 35.05 mm
Material Music Wire
Outside Diameter 5.16 mm
Part Type Standard
Rate 0.68 N/mm
SKU 5103CS
Sugg Max Deflection 27.94 mm
Sugg Max Load 21.8 N
Wind Direction Left
Wire Diameter 0.69 mm