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5406CS - 0.50 Inch Music Wire Extension Springs

The 5406CS is a regular extension spring manufactured by Century Spring. It is made from high-quality Music Wire material and has a natural finish. This spring has a wire diameter of 0.016 inch and an outside diameter of 0.125 inches. Its free length is 0.5 inches, and it has an initial tension of 0.24 pound. The maximum deflection of this spring is 0.42 inches, and it can withstand a maximum load of 1.8 pound force. The 5406CS is a left-wound spring with full loop ends. As a standard extension spring, it is suitable for a wide range of applications.

At Century Spring, we understand the importance of fast and reliable shipping. We take pride in our significant stock inventory, ensuring that we have the 5406CS and other springs readily available for our customers. As an American company, we are committed to manufacturing high-quality springs in the United States. With our efficient shipping and ample supply, Century Spring is your trusted source for springs that meet your specific needs.

Unit System
View Spec Sheet
Specs (in standard)
Label Value
Brand Century Spring
Ends Full Loop
Finish None
Initial Tension 0.24 lb
Length 0.5 in
Material Music Wire
Outside Diameter 0.125 in
Part Type Standard
Rate 3.6 lbs/in
SKU 5406CS
Sugg Max Deflection 0.42 in
Sugg Max Load 1.8 lbf
Wind Direction Left
Wire Diameter 0.016 in
Specs (in metric)
Label Value
Brand Century Spring
Ends Full Loop
Finish None
Initial Tension 0.11 kg
Length 12.7 mm
Material Music Wire
Outside Diameter 3.18 mm
Part Type Standard
Rate 0.63 N/mm
SKU 5406CS
Sugg Max Deflection 10.67 mm
Sugg Max Load 8.01 N
Wind Direction Left
Wire Diameter 0.41 mm
Inventory Status
Low Stock
Estimated Lead Time
In-stock parts: usually ships in 12-24 hours

Pricing reflects the base un-configured part price. Final per piece price including configured options will be calculated once a quantity is entered in the field above.

Quantity Price
1 - 49 $1.39
50 - 149 $1.33
150 - 299 $1.26
300 - 499 $1.19
500 - 749 $1.05
750 - 999 $0.91
1000+ Call for price