This browser is no longer supported. Upgrade to Microsoft Edge or switch to a supported browser, like Chrome, Safari, or Firefox, to explore the MW Components website.

We're sorry for the inconvenience.

5399CS - 1.13 Inch Phosphor Bronze Extension Springs

The 5399CS is a regular extension spring manufactured by Century Spring. It features an extended hook on both ends, allowing for easy installation and secure attachment. Made from high-quality phosphor bronze material, this spring offers excellent durability and resistance to corrosion. With a free length of 1.13 inches and a maximum deflection of 0.87 inches, it provides a wide range of flexibility for various applications. The 5399CS has an initial tension of 0.5 pound, ensuring optimal performance and reliability. It has an outside diameter of 0.25 inches and a wire diameter of 0.032 inches, making it suitable for a variety of projects. With a maximum load of 4.6 pounds force and a spring rate of 4.7 inch-pounds, this spring offers the perfect balance of strength and flexibility.

At Century Spring, we take pride in our fast shipping and extensive stock inventory. We understand the importance of timely delivery, which is why we ensure that our products are ready to be shipped to our customers promptly. Additionally, all our springs, including the 5399CS, are proudly made in the United States. We prioritize quality and craftsmanship, so you can trust that our springs are built to last. With Century Spring, you can count on receiving the springs you need quickly and confidently, backed by our commitment to exceptional customer service.

Unit System
View Spec Sheet
Specs (in standard)
Label Value
Brand Century Spring
Ends Extended Hook
Finish None
Initial Tension 0.5 lb
Length 1.13 in
Material Phosphor Bronze
Outside Diameter 0.25 in
Part Type Standard
Rate 4.7 lbs/in
SKU 5399CS
Sugg Max Deflection 0.87 in
Sugg Max Load 4.6 lbf
Wind Direction Left
Wire Diameter 0.032 in
Specs (in metric)
Label Value
Brand Century Spring
Ends Extended Hook
Finish None
Initial Tension 0.23 kg
Length 28.7 mm
Material Phosphor Bronze
Outside Diameter 6.35 mm
Part Type Standard
Rate 0.82 N/mm
SKU 5399CS
Sugg Max Deflection 22.1 mm
Sugg Max Load 20.46 N
Wind Direction Left
Wire Diameter 0.81 mm
Inventory Status
In-stock
Estimated Lead Time
In-stock parts: usually ships in 12-24 hours
Quantity Price
1 - 49 $2.89
50 - 149 $2.75
150 - 299 $2.61
300 - 499 $2.46
500 - 749 $2.17
750 - 999 $1.88
1000+ Call for price