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5511CS - 0.81 Inch Music Wire Extension Springs

The 5511CS is a regular extension spring manufactured by Century Spring. It is made from Music Wire and features a zinc finish. This spring has a wire diameter of 0.018 Inch and an outside diameter of 0.188 inches. With a free length of 0.81 Inch and an initial tension of 0.1 Pound, it provides a maximum deflection of 1.5 Inch and can withstand a maximum load of 1.4 Pound Force. The 5511CS is a left-wound spring with full loop ends, suitable for various applications in need of extension springs.

At Century Spring, we take pride in our fast shipping and extensive stock inventory. We understand the importance of timely delivery, and our efficient shipping process ensures that customers receive their springs promptly. In addition, all our products, including the 5511CS, are proudly made in the United States. We prioritize quality and reliability in our manufacturing process, allowing us to offer top-notch springs that meet the needs of our customers. With Century Spring, you can count on receiving high-quality springs quickly and efficiently for your projects.

Unit System
View Spec Sheet
Specs (in standard)
Label Value
Brand Century Spring
Ends Full Loop
Finish Zinc
Initial Tension 0.1 lb
Length 0.81 in
Material Music Wire
Outside Diameter 0.188 in
Part Type Standard
Rate 0.83 lbs/in
SKU 5511CS
Sugg Max Deflection 1.5 in
Sugg Max Load 1.4 lbf
Wind Direction Left
Wire Diameter 0.018 in
Specs (in metric)
Label Value
Brand Century Spring
Ends Full Loop
Finish Zinc
Initial Tension 0.05 kg
Length 20.57 mm
Material Music Wire
Outside Diameter 4.78 mm
Part Type Standard
Rate 0.15 N/mm
SKU 5511CS
Sugg Max Deflection 38.1 mm
Sugg Max Load 6.23 N
Wind Direction Left
Wire Diameter 0.46 mm
Inventory Status
Low Stock
Quantity Price
1 - 49 $2.14
50 - 149 $2.04
150 - 299 $1.93
300 - 499 $1.82
500 - 749 $1.61
750 - 999 $1.40
1000+ Call for price