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5239CS - 0.81 Inch Spring Steel Extension Springs

The 5239CS 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 0.06 inches, an outer diameter of 0.296 inches, and a free length of 0.81 inches. It has an initial tension of 9 Pound and a maximum deflection of 0.09 inches. The 5239CS has a spring rate of 202 inches per pound and can withstand a maximum load of 28 Pound Force. It has machine hook ends and is suitable for various extension spring applications.

Century Spring offers fast shipping and maintains a significant stock inventory. We are proud to manufacture our products, including the 5239CS, in the United States. With our reliable shipping and ample 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 9 lb
Length 0.81 in
Material Spring Steel
Outside Diameter 0.296 in
Part Type Standard
Rate 202 lbs/in
SKU 5239CS
Sugg Max Deflection 0.09 in
Sugg Max Load 28 lbf
Wind Direction Left
Wire Diameter 0.06 in
Specs (in metric)
Label Value
Brand Century Spring
Ends Machine Hook
Finish Zinc
Initial Tension 4.08 kg
Length 20.57 mm
Material Spring Steel
Outside Diameter 7.52 mm
Part Type Standard
Rate 35.37 N/mm
SKU 5239CS
Sugg Max Deflection 2.29 mm
Sugg Max Load 124.54 N
Wind Direction Left
Wire Diameter 1.52 mm
Inventory Status
In-stock
Estimated Lead Time
In-stock parts: usually ships in 12-24 hours
Quantity Price
1 - 49 $3.43
50 - 149 $3.26
150 - 299 $3.09
300 - 499 $2.92
500 - 749 $2.58
750 - 999 $2.23
1000+ Call for price