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5257CS - 6 Inch Music Wire Extension Springs

The 5257CS is a regular extension spring manufactured by Century Spring. It is made from high-quality Music Wire and features a durable zinc finish. This spring has a wire diameter of 0.02 Inch and an outside diameter of 0.156 inches. With a free length of 6 Inches and an initial tension of 0.3 Pound, it provides the necessary force for various applications. The 5257CS offers a maximum deflection of 7.5 Inches and can handle a maximum load of 2.7 Pound Force. It is designed with machine hook ends and has a spring rate of 0.32 inches per pound. This standard extension spring is suitable for a wide range of projects.

At Century Spring, we pride ourselves on our fast shipping and extensive stock inventory. We understand the importance of timely delivery and maintaining a wide selection of springs to meet our customers' needs. Additionally, all of our products, including the 5257CS, are proudly made in the United States. With Century Spring, you can count on reliable shipping and quality products that are manufactured right here in the USA.

Unit System
View Spec Sheet
Specs (in standard)
Label Value
Brand Century Spring
Ends Machine Hook
Finish Zinc
Initial Tension 0.3 lb
Length 6 in
Material Music Wire
Outside Diameter 0.156 in
Part Type Standard
Rate 0.32 lbs/in
SKU 5257CS
Sugg Max Deflection 7.5 in
Sugg Max Load 2.7 lbf
Wind Direction Left
Wire Diameter 0.02 in
Specs (in metric)
Label Value
Brand Century Spring
Ends Machine Hook
Finish Zinc
Initial Tension 0.14 kg
Length 152.4 mm
Material Music Wire
Outside Diameter 3.96 mm
Part Type Standard
Rate 0.06 N/mm
SKU 5257CS
Sugg Max Deflection 190.5 mm
Sugg Max Load 12.01 N
Wind Direction Left
Wire Diameter 0.51 mm
Inventory Status
In-stock
Estimated Lead Time
In-stock parts: usually ships in 12-24 hours
Quantity Price
1 - 49 $3.97
50 - 149 $3.78
150 - 299 $3.58
300 - 499 $3.38
500 - 749 $2.98
750 - 999 $2.59
1000+ Call for price