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5447CS - 1.25 Inch Spring Steel Extension Springs

The 5447CS is a regular extension spring manufactured by Century Spring. It is made from spring steel and has a zinc finish. This spring has a wire diameter of 0.041 inches, an outside diameter of 0.359 inches, and a free length of 1.25 inches. It has an initial tension of 1 Pound and a maximum deflection of 0.73 inches. The 5447CS has a spring rate of 7.9 inches per pound and a maximum load of 6.9 Pound Force. It features machine hook ends and is suitable for various applications.

At Century Spring, we pride ourselves on our fast shipping and extensive stock inventory. We understand the importance of timely delivery and strive to ensure that our customers receive their springs quickly. With our significant stock of springs, including the 5447CS, you can rely on us to have the parts you need readily available. Additionally, we are proud to say that all our springs are made in the United States. We prioritize quality and craftsmanship in every product we manufacture. Trust Century Spring for your spring needs.

Unit System
View Spec Sheet
Specs (in standard)
Label Value
Brand Century Spring
Ends Machine Hook
Finish Zinc
Initial Tension 1 lb
Length 1.25 in
Material Spring Steel
Outside Diameter 0.359 in
Part Type Standard
Rate 7.9 lbs/in
SKU 5447CS
Sugg Max Deflection 0.73 in
Sugg Max Load 6.9 lbf
Wind Direction Left
Wire Diameter 0.041 in
Specs (in metric)
Label Value
Brand Century Spring
Ends Machine Hook
Finish Zinc
Initial Tension 0.45 kg
Length 31.75 mm
Material Spring Steel
Outside Diameter 9.12 mm
Part Type Standard
Rate 1.38 N/mm
SKU 5447CS
Sugg Max Deflection 18.54 mm
Sugg Max Load 30.69 N
Wind Direction Left
Wire Diameter 1.04 mm
Inventory Status
In-stock
Estimated Lead Time
In-stock parts: usually ships in 12-24 hours
Quantity Price
1 - 49 $2.26
50 - 149 $2.15
150 - 299 $2.04
300 - 499 $1.93
500 - 749 $1.70
750 - 999 $1.47
1000+ Call for price