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312CS - 3.38 Inch Music Wire Extension Springs

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

The 312CS is a regular extension spring manufactured by Century Spring. It is made from high-quality music wire and features a zinc finish for added durability. This spring has a wire diameter of 0.025 inch and an outside diameter of 0.281 inches. With a free length of 3.38 inches, it provides a maximum deflection of 9.2 inches. The 312CS has an initial tension of 0.27 pound and a maximum load capacity of 2.8 pound force. Designed with a left wind direction and machine hook ends, this extension spring is perfect for various applications that require reliable tension and flexibility.

At Century Spring, we take pride in our fast shipping and extensive stock inventory. As a leading manufacturer, we understand the importance of delivering your springs promptly. With our efficient shipping process, you can count on receiving your 312CS extension springs in a timely manner. Additionally, we are proud to say that all our products, including the 312CS, are proudly made in the United States. When you choose Century Spring, you can trust in our commitment to quality and our dedication to supporting American manufacturing.

Unit System
View Spec Sheet
Specs (in standard)
Label Value
Brand Century Spring
Ends Machine Hook
Finish Zinc
Initial Tension 0.27 lb
Length 3.38 in
Material Music Wire
Outside Diameter 0.281 in
Part Type Standard
Rate 0.28 lbs/in
SKU 312CS
Sugg Max Deflection 9.2 in
Sugg Max Load 2.8 lbf
Wind Direction Left
Wire Diameter 0.025 in
Specs (in metric)
Label Value
Brand Century Spring
Ends Machine Hook
Finish Zinc
Initial Tension 0.12 kg
Length 85.85 mm
Material Music Wire
Outside Diameter 7.14 mm
Part Type Standard
Rate 0.05 N/mm
SKU 312CS
Sugg Max Deflection 233.68 mm
Sugg Max Load 12.45 N
Wind Direction Left
Wire Diameter 0.64 mm