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5391CS - 1.19 Inch Music Wire Extension Springs

The 5391CS is a regular extension spring manufactured by Century Spring. It is made from high-quality Music Wire and features a durable zinc finish. This spring has a wire diameter of 0.025 inches, an outer diameter of 0.25 inches, and a free length of 1.19 inches. It has an initial tension of 0.3 Pound and a maximum deflection of 1.8 inches. The 5391CS has a spring rate of 1.5 inches per pound and can support a maximum load of 3.1 Pound Force. With its left wind direction and machine hook ends, this spring is suitable for a variety of applications.

At Century Spring, we take pride in our fast shipping and extensive stock inventory. We understand the importance of timely delivery and strive to ensure that our customers receive their springs promptly. Additionally, all of our products, including the 5391CS, are proudly made in the United States. With our commitment to quality and availability, Century Spring is your trusted source for top-notch springs.

Unit System
View Spec Sheet
Specs (in standard)
Label Value
Brand Century Spring
Ends Machine Hook
Finish Zinc
Initial Tension 0.3 lb
Length 1.19 in
Material Music Wire
Outside Diameter 0.25 in
Part Type Standard
Rate 1.5 lbs/in
SKU 5391CS
Sugg Max Deflection 1.8 in
Sugg Max Load 3.1 lbf
Wind Direction Left
Wire Diameter 0.025 in
Specs (in metric)
Label Value
Brand Century Spring
Ends Machine Hook
Finish Zinc
Initial Tension 0.14 kg
Length 30.23 mm
Material Music Wire
Outside Diameter 6.35 mm
Part Type Standard
Rate 0.26 N/mm
SKU 5391CS
Sugg Max Deflection 45.72 mm
Sugg Max Load 13.79 N
Wind Direction Left
Wire Diameter 0.64 mm
Inventory Status
In-stock
Estimated Lead Time
In-stock parts: usually ships in 12-24 hours
Quantity Price
1 - 49 $1.77
50 - 149 $1.69
150 - 299 $1.60
300 - 499 $1.51
500 - 749 $1.33
750 - 999 $1.16
1000+ Call for price