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5901CS - 2.25 Inch Spring Steel Extension Springs

The 5901CS is a regular extension spring manufactured by Century Spring. It is made from spring steel and features a zinc finish for added durability. This spring has a wire diameter of 0.085 Inch and an outside diameter of 0.843 inches. The free length of the spring is 2.25 inches, and it has an initial tension of 4 Pound. The maximum deflection of the spring is 1.7 inches, and it can handle a maximum load of 23 Pound Force. The 5901CS is a left-wound spring with full loop ends. It has a spring rate of 11 inches per pound and is suitable for various applications.

At Century Spring, we pride ourselves on our fast shipping and extensive stock inventory. Our products, including the 5901CS, are made right here in the United States. With our efficient shipping process and ample supply, we ensure that customers can receive the springs they need promptly. Trust Century Spring for high-quality springs and reliable service.

Unit System
View Spec Sheet
Specs (in standard)
Label Value
Brand Century Spring
Ends Full Loop
Finish Zinc
Initial Tension 4 lb
Length 2.25 in
Material Spring Steel
Outside Diameter 0.843 in
Part Type Standard
Rate 11 lbs/in
SKU 5901CS
Sugg Max Deflection 1.7 in
Sugg Max Load 23 lbf
Wind Direction Left
Wire Diameter 0.085 in
Specs (in metric)
Label Value
Brand Century Spring
Ends Full Loop
Finish Zinc
Initial Tension 1.81 kg
Length 57.15 mm
Material Spring Steel
Outside Diameter 21.41 mm
Part Type Standard
Rate 1.93 N/mm
SKU 5901CS
Sugg Max Deflection 43.18 mm
Sugg Max Load 102.3 N
Wind Direction Left
Wire Diameter 2.16 mm
Inventory Status
Low Stock
Estimated Lead Time
In-stock parts: usually ships in 12-24 hours
Quantity Price
1 - 49 $4.07
50 - 149 $3.87
150 - 299 $3.67
300 - 499 $3.46
500 - 749 $3.06
750 - 999 $2.65
1000+ Call for price