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12373CS - 3.25 Inch Spring Steel Extension Springs

The 12373CS 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 0.12 inch and an outer diameter of 0.718 inches. It has a free length of 3.25 inches and an initial tension of 23 pounds. The 12373CS has a spring rate of 67 inch-pounds and can withstand a maximum load of 78 pound force. It features full loop ends and offers a maximum deflection of 0.83 inches. This extension spring is designed for a wide range of applications.

At Century Spring, we pride ourselves on our fast shipping and extensive stock inventory. We understand the importance of timely delivery, which is why we strive to process and ship orders as quickly as possible. With our significant stock of springs, including the 12373CS, we ensure that customers can find the products they need readily available. Additionally, all our springs are proudly made in the United States, guaranteeing high-quality craftsmanship and materials. Trust Century Spring for your spring needs, and experience our efficient shipping and reliable inventory firsthand.

Unit System
View Spec Sheet
Specs (in standard)
Label Value
Brand Century Spring
Ends Full Loop
Finish Zinc
Initial Tension 23 lb
Length 3.25 in
Material Spring Steel
Outside Diameter 0.718 in
Part Type Standard
Rate 67 lbs/in
SKU 12373CS
Sugg Max Deflection 0.83 in
Sugg Max Load 78 lbf
Wind Direction Left
Wire Diameter 0.12 in
Specs (in metric)
Label Value
Brand Century Spring
Ends Full Loop
Finish Zinc
Initial Tension 10.43 kg
Length 82.55 mm
Material Spring Steel
Outside Diameter 18.24 mm
Part Type Standard
Rate 11.73 N/mm
SKU 12373CS
Sugg Max Deflection 21.08 mm
Sugg Max Load 346.94 N
Wind Direction Left
Wire Diameter 3.05 mm
Inventory Status
In-stock
Estimated Lead Time
In-stock parts: usually ships in 12-24 hours
Quantity Price
1 - 49 $5.75
50 - 149 $5.47
150 - 299 $5.18
300 - 499 $4.89
500 - 749 $4.32
750 - 999 $3.74
1000+ Call for price