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5791CS - 4.50 Inch Spring Steel Extension Springs

The 5791CS is a regular extension spring manufactured by Century Spring. It is made from spring steel and features a durable gold iridite finish. This spring has a free length of 4.5 inches and an initial tension of 2 pounds. With a maximum deflection of 5.5 inches and a maximum load capacity of 12 pound force, the 5791CS is a reliable and versatile extension spring. It has a wire diameter of 0.0625 inches and an outside diameter of 0.656 inches, giving it a spring rate of 1.9 inches per pound. The ends of this spring are full loops, providing secure attachment points. With its standard measurement units and high-quality construction, the 5791CS is an excellent choice for a wide range of applications.

At Century Spring, we take pride in our fast shipping and extensive stock inventory. We understand the urgency of your projects, which is why we strive to deliver your springs promptly. With our significant stock, you can rest assured that the 5791CS and other springs are readily available when you need them. Additionally, all our springs are proudly made in the United States, ensuring exceptional quality and supporting local manufacturing. Trust Century Spring to provide you with reliable and efficient service, along with top-notch springs for all your needs.

Unit System
View Spec Sheet
Specs (in standard)
Label Value
Brand Century Spring
Ends Full Loop
Finish Gold Iridite
Initial Tension 2 lb
Length 4.5 in
Material Spring Steel
Outside Diameter 0.656 in
Part Type Standard
Rate 1.9 lbs/in
SKU 5791CS
Sugg Max Deflection 5.5 in
Sugg Max Load 12 lbf
Wind Direction Left
Wire Diameter 0.0625 in
Specs (in metric)
Label Value
Brand Century Spring
Ends Full Loop
Finish Gold Iridite
Initial Tension 0.91 kg
Length 114.3 mm
Material Spring Steel
Outside Diameter 16.66 mm
Part Type Standard
Rate 0.33 N/mm
SKU 5791CS
Sugg Max Deflection 139.7 mm
Sugg Max Load 53.38 N
Wind Direction Left
Wire Diameter 1.59 mm
Inventory Status
Low Stock
Quantity Price
1 - 49 $4.69
50 - 149 $4.46
150 - 299 $4.23
300 - 499 $3.99
500 - 749 $3.52
750 - 999 $3.05
1000+ Call for price