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5812CS - 12.30 Inch Music Wire Extension Springs

The 5812CS is a regular extension spring manufactured by Century Spring. This spring is made from high-quality music wire and has a durable zinc finish. It has a free length of 12.3 inches and an initial tension of 0.3 pounds. The 5812CS has an outside diameter of 0.188 inches and a wire diameter of 0.022 inches. It has a maximum deflection of 20 inches and can withstand a maximum load of 3 pounds. This spring is equipped with machine hooks on both ends, making it easy to install and secure. The 5812CS is a reliable and versatile extension spring suitable for a wide range of applications.

At Century Spring, we take pride in our fast shipping and extensive stock inventory. We understand the importance of timely delivery, and our efficient shipping process ensures that you receive your springs as quickly as possible. With our significant stock inventory, we can fulfill your orders promptly, allowing you to proceed with your projects without delay. Additionally, all of our springs, including the 5812CS, are proudly made in the United States. This guarantees the highest level of quality and craftsmanship in every spring we produce. Trust Century Spring for all your spring needs, and experience our commitment to exceptional products and service.

Unit System
View Spec Sheet
Specs (in standard)
Label Value
Brand Century Spring
Ends Machine Hook
Finish Zinc
Initial Tension 0.3 lb
Length 12.3 in
Material Music Wire
Outside Diameter 0.188 in
Part Type Standard
Rate 0.14 lbs/in
SKU 5812CS
Sugg Max Deflection 20 in
Sugg Max Load 3 lbf
Wind Direction Left
Wire Diameter 0.022 in
Specs (in metric)
Label Value
Brand Century Spring
Ends Machine Hook
Finish Zinc
Initial Tension 0.14 kg
Length 312.42 mm
Material Music Wire
Outside Diameter 4.78 mm
Part Type Standard
Rate 0.02 N/mm
SKU 5812CS
Sugg Max Deflection 508 mm
Sugg Max Load 13.34 N
Wind Direction Left
Wire Diameter 0.56 mm
Inventory Status
In-stock
Estimated Lead Time
In-stock parts: usually ships in 12-24 hours
Quantity Price
1 - 49 $4.31
50 - 149 $4.10
150 - 299 $3.88
300 - 499 $3.67
500 - 749 $3.24
750 - 999 $2.81
1000+ Call for price