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652CS - 7 Inch High Carbon Steel Extension Springs

The 652CS is a regular extension spring manufactured by Century Spring. This spring is made of High Carbon steel and has a zinc finish. It has a wire diameter of 0.135 inches, an outer diameter of 1 inches, and a free length of 7 inches. The 652CS has a spring rate of 18 inches per pound and can withstand a maximum load of 75 Pound Force. It features double loop ends and can provide a maximum deflection of 3.1 inches. This standard extension spring is suitable for a wide range of applications.

At Century Spring, we pride ourselves on fast shipping and maintaining a significant stock inventory. Our products, including the 652CS, are proudly made in the United States. With our efficient shipping process and ample supply, we ensure that our customers can receive the springs they need promptly. Trust Century Spring for reliable service and high-quality springs for your projects.

Unit System
View Spec Sheet
Specs (in standard)
Label Value
Brand Century Spring
Ends Double Loop
Finish Zinc
Initial Tension 17 lb
Length 7 in
Material High Carbon Steel
Outside Diameter 1 in
Part Type Standard
Rate 18 lbs/in
SKU 652CS
Sugg Max Deflection 3.1 in
Sugg Max Load 75 lbf
Wind Direction Left
Wire Diameter 0.135 in
Specs (in metric)
Label Value
Brand Century Spring
Ends Double Loop
Finish Zinc
Initial Tension 7.71 kg
Length 177.8 mm
Material High Carbon Steel
Outside Diameter 25.4 mm
Part Type Standard
Rate 3.15 N/mm
SKU 652CS
Sugg Max Deflection 78.74 mm
Sugg Max Load 333.6 N
Wind Direction Left
Wire Diameter 3.43 mm
Inventory Status
In-stock
Estimated Lead Time
In-stock parts: usually ships in 12-24 hours
Quantity Price
1 - 49 $11.22
50 - 149 $10.66
150 - 299 $10.10
300 - 499 $9.54
500 - 749 $8.42
750 - 999 $7.30
1000+ Call for price