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5125CS - 2.50 Inch Spring Steel Extension Springs

The 5125CS 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 free length of 2.5 inches and an initial tension of 2 pounds. With a maximum deflection of 1.7 inches and a maximum load of 9 pound force, the 5125CS is a reliable and versatile spring. Its outside diameter measures 0.343 inches, and the wire diameter is 0.044 inches. The 5125CS has a spring rate of 4.3 inches per pound. It is designed with full-loop ends for secure attachment.

Century Spring takes pride in offering fast shipping and maintains a significant stock inventory. As an American manufacturer, we ensure that our products, including the 5125CS, are made in the United States. With our efficient shipping and ample supply, Century Spring guarantees that you will receive the high-quality springs you need for your projects promptly.

Unit System
View Spec Sheet
Specs (in standard)
Label Value
Brand Century Spring
Ends Full Loop
Finish Zinc
Initial Tension 2 lb
Length 2.5 in
Material Spring Steel
Outside Diameter 0.343 in
Part Type Standard
Rate 4.3 lbs/in
SKU 5125CS
Sugg Max Deflection 1.7 in
Sugg Max Load 9 lbf
Wind Direction Left
Wire Diameter 0.044 in
Specs (in metric)
Label Value
Brand Century Spring
Ends Full Loop
Finish Zinc
Initial Tension 0.91 kg
Length 63.5 mm
Material Spring Steel
Outside Diameter 8.71 mm
Part Type Standard
Rate 0.75 N/mm
SKU 5125CS
Sugg Max Deflection 43.18 mm
Sugg Max Load 40.03 N
Wind Direction Left
Wire Diameter 1.12 mm
Inventory Status
In-stock
Estimated Lead Time
In-stock parts: usually ships in 12-24 hours
Quantity Price
1 - 49 $2.30
50 - 149 $2.19
150 - 299 $2.07
300 - 499 $1.96
500 - 749 $1.73
750 - 999 $1.50
1000+ Call for price