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5289CS - 1 Inch Music Wire Extension Springs

The 5289CS 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 0.03 Inch and an outside diameter of 0.343 inches. It has a free length of 1 Inch and an initial tension of 0.3 Pound. The 5289CS has a maximum deflection of 1.7 Inch and a maximum load of 3.9 Pound Force. With its left wind direction and machine hook ends, this extension spring is suitable for various applications.

At Century Spring, we pride ourselves on our fast shipping and extensive stock inventory. Our products, including the 5289CS, are proudly made in the United States. With our efficient shipping processes and ample supply, we ensure that customers can quickly receive the springs they need for their projects. Trust Century Spring for reliable service and high-quality springs.

Unit System
View Spec Sheet
Specs (in standard)
Label Value
Brand Century Spring
Ends Machine Hook
Finish Zinc
Initial Tension 0.3 lb
Length 1 in
Material Music Wire
Outside Diameter 0.343 in
Part Type Standard
Rate 2.1 lbs/in
SKU 5289CS
Sugg Max Deflection 1.7 in
Sugg Max Load 3.9 lbf
Wind Direction Left
Wire Diameter 0.03 in
Specs (in metric)
Label Value
Brand Century Spring
Ends Machine Hook
Finish Zinc
Initial Tension 0.14 kg
Length 25.4 mm
Material Music Wire
Outside Diameter 8.71 mm
Part Type Standard
Rate 0.37 N/mm
SKU 5289CS
Sugg Max Deflection 43.18 mm
Sugg Max Load 17.35 N
Wind Direction Left
Wire Diameter 0.76 mm
Inventory Status
In-stock
Estimated Lead Time
In-stock parts: usually ships in 12-24 hours
Quantity Price
1 - 49 $4.82
50 - 149 $4.58
150 - 299 $4.34
300 - 499 $4.10
500 - 749 $3.62
750 - 999 $3.14
1000+ Call for price