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79CS - 3.50 Inch High Carbon Steel Extension Springs

The 79CS is a regular extension spring manufactured by Century Spring. It is made from High Carbon steel and has a zinc finish. This spring has a wire diameter of 0.0625 inches, an outside diameter of 0.75 inches, and a free length of 3.5 inches. It has an initial tension of 1 Pound and a maximum deflection of 5.4 inches. The 79CS has a spring rate of 1.7 inches per pound and a maximum load of 10 Pound Force. It features machine hooks at both ends. This regular extension spring from Century Spring is ideal for various applications requiring reliable tension.

At Century Spring, we take pride in our fast shipping and substantial stock inventory. Our products, including the 79CS, are proudly made in the United States. With our efficient shipping process and extensive supply, Century Spring ensures that customers can quickly receive the springs they need for their projects.

Unit System
View Spec Sheet
Specs (in standard)
Label Value
Brand Century Spring
Ends Machine Hook
Finish Zinc
Initial Tension 1 lb
Length 3.5 in
Material High Carbon Steel
Outside Diameter 0.75 in
Part Type Standard
Rate 1.7 lbs/in
SKU 79CS
Sugg Max Deflection 5.4 in
Sugg Max Load 10 lbf
Wind Direction Left
Wire Diameter 0.0625 in
Specs (in metric)
Label Value
Brand Century Spring
Ends Machine Hook
Finish Zinc
Initial Tension 0.45 kg
Length 88.9 mm
Material High Carbon Steel
Outside Diameter 19.05 mm
Part Type Standard
Rate 0.3 N/mm
SKU 79CS
Sugg Max Deflection 137.16 mm
Sugg Max Load 44.48 N
Wind Direction Left
Wire Diameter 1.59 mm
Inventory Status
In-stock
Estimated Lead Time
In-stock parts: usually ships in 12-24 hours
Quantity Price
1 - 49 $3.99
50 - 149 $3.80
150 - 299 $3.60
300 - 499 $3.40
500 - 749 $3.00
750 - 999 $2.60
1000+ Call for price