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5491CS - 1.25 Inch Spring Steel Extension Springs

Inventory Status
In-stock
Estimated Lead Time
In-stock parts: usually ships in 12-24 hours

The 5491CS is a regular extension spring manufactured by Century Spring. It is made from spring steel and features a zinc finish for added durability. This spring has a wire diameter of 0.051 inches, an outside diameter of 0.375 inches, and a free length of 1.25 inches. With an initial tension of 3 pounds and a maximum load of 12 pound force, the 5491CS is designed to provide reliable extension and flexibility. Its maximum deflection is 0.37 inches, and it has a spring rate of 26 lbs/inch. The 5491CS has machine hook ends and is suitable for a variety of applications that require extension springs.

At Century Spring, we pride ourselves on our fast shipping and extensive stock inventory. We understand the importance of timely delivery, which is why we work diligently to process and ship orders as quickly as possible. Additionally, our significant stock inventory ensures that we have a wide range of springs, including the 5491CS, readily available for immediate shipment. As an American company, we take pride in manufacturing our products in the United States. With Century Spring, you can trust that you'll receive high-quality springs that are made with precision and care.

Unit System
View Spec Sheet
Specs (in standard)
Label Value
Brand Century Spring
Ends Machine Hook
Finish Zinc
Initial Tension 3 lb
Length 1.25 in
Material Spring Steel
Outside Diameter 0.375 in
Part Type Standard
Rate 26 lbs/in
SKU 5491CS
Sugg Max Deflection 0.37 in
Sugg Max Load 12 lbf
Wind Direction Left
Wire Diameter 0.051 in
Specs (in metric)
Label Value
Brand Century Spring
Ends Machine Hook
Finish Zinc
Initial Tension 1.36 kg
Length 31.75 mm
Material Spring Steel
Outside Diameter 9.53 mm
Part Type Standard
Rate 4.55 N/mm
SKU 5491CS
Sugg Max Deflection 9.4 mm
Sugg Max Load 53.38 N
Wind Direction Left
Wire Diameter 1.3 mm