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5374CS - 3.50 Inch Spring Steel Extension Springs

The 5374CS is a regular extension spring manufactured by Century Spring. It is made from spring steel and has a durable zinc finish. This spring has a wire diameter of 0.08 inches, an outside diameter of 0.687 inches, and a free length of 3.5 inches. It has an initial tension of 4 Pound and a maximum deflection of 1.7 inches. The 5374CS has a spring rate of 11 inches per pound and can withstand a maximum load of 24 Pound Force. It features machine hooks on both ends for secure attachment. The 5374CS is a reliable extension spring suitable for a variety of applications.

Century Spring offers fast shipping and maintains a significant stock inventory. We take pride in manufacturing all our products, including the 5374CS, in the United States. With our efficient shipping process and ample supply, Century Spring ensures that customers can promptly 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 4 lb
Length 3.5 in
Material Spring Steel
Outside Diameter 0.687 in
Part Type Standard
Rate 11 lbs/in
SKU 5374CS
Sugg Max Deflection 1.7 in
Sugg Max Load 24 lbf
Wind Direction Left
Wire Diameter 0.08 in
Specs (in metric)
Label Value
Brand Century Spring
Ends Machine Hook
Finish Zinc
Initial Tension 1.81 kg
Length 88.9 mm
Material Spring Steel
Outside Diameter 17.45 mm
Part Type Standard
Rate 1.93 N/mm
SKU 5374CS
Sugg Max Deflection 43.18 mm
Sugg Max Load 106.75 N
Wind Direction Left
Wire Diameter 2.03 mm
Inventory Status
In-stock
Estimated Lead Time
In-stock parts: usually ships in 12-24 hours
Quantity Price
1 - 49 $5.29
50 - 149 $5.03
150 - 299 $4.77
300 - 499 $4.50
500 - 749 $3.97
750 - 999 $3.44
1000+ Call for price