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5188CS - 4 Inch Music Wire Extension Springs

The 5188CS 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 0.021 inches, an outer diameter of 0.156 inches, and a free length of 4 inches. It has an initial tension of 0.4 Pound and a maximum deflection of 4.3 inches. The 5188CS has a spring rate of 0.64 inches per pound and a maximum load of 3.2 Pound Force. It features full loop ends, providing secure attachment points. The 5188CS is a reliable extension spring suitable for various applications.

At Century Spring, we take pride in our fast shipping and extensive inventory. We understand the importance of timely delivery, which is why we ensure that our products, including the 5188CS, are readily available. Additionally, all of our springs are proudly made in the United States, guaranteeing high-quality craftsmanship. With Century Spring, you can rely on our quick shipping and abundant stock to meet your spring needs efficiently.

Unit System
View Spec Sheet
Specs (in standard)
Label Value
Brand Century Spring
Ends Full Loop
Finish Zinc
Initial Tension 0.4 lb
Length 4 in
Material Music Wire
Outside Diameter 0.156 in
Part Type Standard
Rate 0.64 lbs/in
SKU 5188CS
Sugg Max Deflection 4.3 in
Sugg Max Load 3.2 lbf
Wind Direction Left
Wire Diameter 0.021 in
Specs (in metric)
Label Value
Brand Century Spring
Ends Full Loop
Finish Zinc
Initial Tension 0.18 kg
Length 101.6 mm
Material Music Wire
Outside Diameter 3.96 mm
Part Type Standard
Rate 0.11 N/mm
SKU 5188CS
Sugg Max Deflection 109.22 mm
Sugg Max Load 14.23 N
Wind Direction Left
Wire Diameter 0.53 mm
Inventory Status
In-stock
Estimated Lead Time
In-stock parts: usually ships in 12-24 hours
Quantity Price
1 - 49 $3.25
50 - 149 $3.09
150 - 299 $2.93
300 - 499 $2.77
500 - 749 $2.44
750 - 999 $2.12
1000+ Call for price