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5451CS - 4.25 Inch Spring Steel Extension Springs

The 5451CS is a regular extension spring by Century Spring. It has a zinc finish and is made of spring steel. This spring has a wire diameter of 0.105 inches, an outside diameter of 0.875 inches, and a free length of 4.25 inches. It has an initial tension of 8 Pound and a maximum deflection of 2.6 inches. The 5451CS has a spring rate of 13 inches per pound and a maximum load of 41 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 receiving springs promptly, which is why we ensure quick delivery to our customers. With our significant stock, including the 5451CS, we can meet the demands of various projects and industries. We are also proud to say that all our springs are made in the United States, guaranteeing quality and supporting local manufacturing. Trust Century Spring for reliable shipping, ample supply, and American-made products.

Unit System
View Spec Sheet
Specs (in standard)
Label Value
Brand Century Spring
Ends Machine Hook
Finish Zinc
Initial Tension 8 lb
Length 4.25 in
Material Spring Steel
Outside Diameter 0.875 in
Part Type Standard
Rate 13 lbs/in
SKU 5451CS
Sugg Max Deflection 2.6 in
Sugg Max Load 41 lbf
Wind Direction Left
Wire Diameter 0.105 in
Specs (in metric)
Label Value
Brand Century Spring
Ends Machine Hook
Finish Zinc
Initial Tension 3.63 kg
Length 107.95 mm
Material Spring Steel
Outside Diameter 22.23 mm
Part Type Standard
Rate 2.28 N/mm
SKU 5451CS
Sugg Max Deflection 66.04 mm
Sugg Max Load 182.37 N
Wind Direction Left
Wire Diameter 2.67 mm
Inventory Status
In-stock
Estimated Lead Time
In-stock parts: usually ships in 12-24 hours
Quantity Price
1 - 49 $6.56
50 - 149 $6.24
150 - 299 $5.91
300 - 499 $5.58
500 - 749 $4.92
750 - 999 $4.27
1000+ Call for price