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.

409CS - 1 Inch Phosphor Bronze Extension Springs

The 409CS is a regular extension spring manufactured by Century Spring. It features double loop ends and is made from Phosphor Bronze material. This spring has a free length of 1 inch and an outside diameter of 0.281 inches. It has an initial tension of 0.5 pound and a maximum deflection of 0.98 inches. The 409CS has a maximum load capacity of 4.9 pound force and a spring rate of 4.5 inches per pound. It has a wire diameter of 0.034 inches and is wound in a left direction. With its reliable performance and precise measurements, the 409CS is ideal for various extension spring applications.

At Century Spring, we take pride in our fast shipping and extensive stock inventory. We understand the importance of timely delivery, and that's why we ensure prompt shipping for all our products, including the 409CS. Our significant stock inventory guarantees that you'll find the springs you need readily available. What's more, all our springs are proudly made in the United States, ensuring high quality and adherence to industry standards. Trust Century Spring for your spring needs, and experience the convenience of fast shipping, ample stock, and American-made excellence.

Unit System
View Spec Sheet
Specs (in standard)
Label Value
Brand Century Spring
Ends Double Loop
Finish None
Initial Tension 0.5 lb
Length 1 in
Material Phosphor Bronze
Outside Diameter 0.281 in
Part Type Standard
Rate 4.5 lbs/in
SKU 409CS
Sugg Max Deflection 0.98 in
Sugg Max Load 4.9 lbf
Wind Direction Left
Wire Diameter 0.034 in
Specs (in metric)
Label Value
Brand Century Spring
Ends Double Loop
Finish None
Initial Tension 0.23 kg
Length 25.4 mm
Material Phosphor Bronze
Outside Diameter 7.14 mm
Part Type Standard
Rate 0.79 N/mm
SKU 409CS
Sugg Max Deflection 24.89 mm
Sugg Max Load 21.8 N
Wind Direction Left
Wire Diameter 0.86 mm
Inventory Status
In-stock
Estimated Lead Time
In-stock parts: usually ships in 12-24 hours
Quantity Price
1 - 49 $2.09
50 - 149 $1.99
150 - 299 $1.89
300 - 499 $1.78
500 - 749 $1.57
750 - 999 $1.36
1000+ Call for price