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5210CS - 3.88 Inch Spring Steel Extension Springs

The 5210CS 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 0.042 inches, an outside diameter of 0.328 inches, and a free length of 3.88 inches. It has an initial tension of 1 Pound and a maximum deflection of 2.8 inches. The 5210CS has a spring rate of 2.4 inches per pound and can withstand a maximum load of 8.2 Pound Force. It features machine hook ends and is suitable for various applications.

At Century Spring, we pride ourselves on our fast shipping and extensive stock inventory. We understand the importance of timely delivery and strive to ensure that our customers receive their orders promptly. Additionally, all of our springs, including the 5210CS, are proudly made in the United States. By manufacturing our products domestically, we maintain strict quality control and support local industries. With Century Spring, you can trust in our reliable shipping and American-made products to meet your spring needs efficiently.

Unit System
View Spec Sheet
Specs (in standard)
Label Value
Brand Century Spring
Ends Machine Hook
Finish Zinc
Initial Tension 1 lb
Length 3.88 in
Material Spring Steel
Outside Diameter 0.328 in
Part Type Standard
Rate 2.4 lbs/in
SKU 5210CS
Sugg Max Deflection 2.8 in
Sugg Max Load 8.2 lbf
Wind Direction Left
Wire Diameter 0.042 in
Specs (in metric)
Label Value
Brand Century Spring
Ends Machine Hook
Finish Zinc
Initial Tension 0.45 kg
Length 98.55 mm
Material Spring Steel
Outside Diameter 8.33 mm
Part Type Standard
Rate 0.42 N/mm
SKU 5210CS
Sugg Max Deflection 71.12 mm
Sugg Max Load 36.47 N
Wind Direction Left
Wire Diameter 1.07 mm
Inventory Status
In-stock
Estimated Lead Time
In-stock parts: usually ships in 12-24 hours
Quantity Price
1 - 49 $3.31
50 - 149 $3.15
150 - 299 $2.98
300 - 499 $2.82
500 - 749 $2.49
750 - 999 $2.16
1000+ Call for price