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445CS - 3 Inch Music Wire Extension Springs

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

The 445CS 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 free length of 3 inches and an initial tension of 0.3 pounds. With a maximum deflection of 8.8 inches and a maximum load capacity of 4 pounds, the 445CS is suitable for a variety of applications. Its outer diameter measures 0.375 inches, and it has a wire diameter of 0.031 inches. The spring rate is 0.41 inches per pound, providing reliable performance. The 445CS is a left-wound spring, and its ends are designed with full loops.

At Century Spring, we pride ourselves on offering fast shipping and maintaining a substantial stock inventory. Our springs, including the 445CS, are proudly made in the United States. Whether you need springs for industrial, automotive, or residential applications, we ensure that our products are readily available to fulfill your needs. With our efficient shipping and extensive stock, Century Spring is your trusted source for high-quality springs.

Unit System
View Spec Sheet
Specs (in standard)
Label Value
Brand Century Spring
Ends Full Loop
Finish Zinc
Initial Tension 0.3 lb
Length 3 in
Material Music Wire
Outside Diameter 0.375 in
Part Type Standard
Rate 0.41 lbs/in
SKU 445CS
Sugg Max Deflection 8.8 in
Sugg Max Load 4 lbf
Wind Direction Left
Wire Diameter 0.031 in
Specs (in metric)
Label Value
Brand Century Spring
Ends Full Loop
Finish Zinc
Initial Tension 0.14 kg
Length 76.2 mm
Material Music Wire
Outside Diameter 9.53 mm
Part Type Standard
Rate 0.07 N/mm
SKU 445CS
Sugg Max Deflection 223.52 mm
Sugg Max Load 17.79 N
Wind Direction Left
Wire Diameter 0.79 mm