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5611CS - 1.63 Inch Spring Steel Extension Springs

The 5611CS is a regular extension spring manufactured by Century Spring. It features machine hook ends and a zinc finish. With a free length of 1.63 inches and an initial tension of 0.5 pounds, this spring is made of durable spring steel. It has a maximum deflection of 2 inches and a maximum load capacity of 4 pounds force. The 5611CS has an outside diameter of 0.375 inches and a wire diameter of 0.035 inches. Its spring rate is 1.7 inches per pound. This standard-sized extension spring is ideal for various applications.

At Century Spring, we pride ourselves on fast shipping and maintaining a significant stock inventory. We are dedicated to providing high-quality springs, including the 5611CS, which are proudly made in the United States. With our efficient shipping process and extensive product availability, Century Spring ensures that customers can rely on us for their spring needs.

Unit System
View Spec Sheet
Specs (in standard)
Label Value
Brand Century Spring
Ends Machine Hook
Finish Zinc
Initial Tension 0.5 lb
Length 1.63 in
Material Spring Steel
Outside Diameter 0.375 in
Part Type Standard
Rate 1.7 lbs/in
SKU 5611CS
Sugg Max Deflection 2 in
Sugg Max Load 4 lbf
Wind Direction Left
Wire Diameter 0.035 in
Specs (in metric)
Label Value
Brand Century Spring
Ends Machine Hook
Finish Zinc
Initial Tension 0.23 kg
Length 41.4 mm
Material Spring Steel
Outside Diameter 9.53 mm
Part Type Standard
Rate 0.3 N/mm
SKU 5611CS
Sugg Max Deflection 50.8 mm
Sugg Max Load 17.79 N
Wind Direction Left
Wire Diameter 0.89 mm
Inventory Status
In-stock
Estimated Lead Time
In-stock parts: usually ships in 12-24 hours
Quantity Price
1 - 49 $2.53
50 - 149 $2.41
150 - 299 $2.28
300 - 499 $2.16
500 - 749 $1.90
750 - 999 $1.65
1000+ Call for price