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5650CS - 8.50 Inch Spring Steel Extension Springs

The 5650CS is a regular extension spring manufactured by Century Spring. This spring is made from spring steel and has a zinc finish. It has a free length of 8.5 inches and an initial tension of 24 pounds. The maximum deflection of this spring is 2.9 inches, and it can handle a maximum load of 87 pound force. With an outside diameter of 0.875 inches and a wire diameter of 0.135 inches, the 5650CS has a spring rate of 22 inches per pound. It features machine hooks on both ends and is suitable for various applications.

At Century Spring, we take pride in our fast shipping and extensive stock inventory. Our products, including the 5650CS, are made right here in the United States. With our efficient shipping processes and ample supply, we ensure that our customers receive their springs promptly and have access to the parts 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 24 lb
Length 8.5 in
Material Spring Steel
Outside Diameter 0.875 in
Part Type Standard
Rate 22 lbs/in
SKU 5650CS
Sugg Max Deflection 2.9 in
Sugg Max Load 87 lbf
Wind Direction Left
Wire Diameter 0.135 in
Specs (in metric)
Label Value
Brand Century Spring
Ends Machine Hook
Finish Zinc
Initial Tension 10.88 kg
Length 215.9 mm
Material Spring Steel
Outside Diameter 22.23 mm
Part Type Standard
Rate 3.85 N/mm
SKU 5650CS
Sugg Max Deflection 73.66 mm
Sugg Max Load 386.98 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 $8.47
50 - 149 $8.05
150 - 299 $7.63
300 - 499 $7.20
500 - 749 $6.36
750 - 999 $5.51
1000+ Call for price