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5515CS - 1.75 Inch Spring Steel Extension Springs

Inventory Status
Limited Availability
Estimated Lead Time
In-stock parts: usually ships in 12-24 hours

The 5515CS is an extension spring manufactured by Century Spring. It is made from spring steel and has a zinc finish. This spring has a wire diameter of 0.057 inches, an outside diameter of 0.375 inches, and a free length of 1.75 inches. It has an initial tension of 4 Pound and a maximum deflection of 0.61 inches. The 5515CS has a spring rate of 21 lbs/inch and a maximum load of 17 Pound Force. It features machine hook ends and is suitable for various applications as a regular extension spring.

At Century Spring, we take pride in our fast shipping and extensive stock inventory. We understand the importance of receiving springs quickly for your projects. That's why we offer reliable and efficient shipping services. Additionally, all our springs, including the 5515CS, are proudly made in the United States. We prioritize quality and craftsmanship in our manufacturing process to ensure that our customers receive the highest standard of products. With Century Spring, you can count on fast shipping, ample supply, and reliable springs for your needs.

Unit System
View Spec Sheet
Specs (in standard)
Label Value
Brand Century Spring
Ends Machine Hook
Finish Zinc
Initial Tension 4 lb
Length 1.75 in
Material Spring Steel
Outside Diameter 0.375 in
Part Type Standard
Rate 21 lbs/in
SKU 5515CS
Sugg Max Deflection 0.61 in
Sugg Max Load 17 lbf
Wind Direction Left
Wire Diameter 0.057 in
Specs (in metric)
Label Value
Brand Century Spring
Ends Machine Hook
Finish Zinc
Initial Tension 1.81 kg
Length 44.45 mm
Material Spring Steel
Outside Diameter 9.53 mm
Part Type Standard
Rate 3.68 N/mm
SKU 5515CS
Sugg Max Deflection 15.49 mm
Sugg Max Load 75.62 N
Wind Direction Left
Wire Diameter 1.45 mm