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80390CS - 2.75 Inch Music Wire Extension Springs

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

The 80390CS is a regular extension spring manufactured by Century Spring. It is made from Music Wire and does not have a finish. This spring has a wire diameter of 0.031 inches, an outside diameter of 0.3 inches, and a free length of 2.75 inches. It has an initial tension of 0.4 Pound and a maximum deflection of 4.4 inches. The 80390CS has a maximum load of 4.8 Pound Force and a spring rate of 1 lbs/inch. It features full loop ends, providing secure attachment. This regular extension spring is suitable for various applications where extension and tension are required.

Century Spring offers fast shipping and maintains a significant stock inventory. We are proud to manufacture our springs in the United States. With our reliable shipping and ample supply, Century Spring ensures that customers can quickly receive the springs they need for their projects.

Unit System
View Spec Sheet
Specs (in standard)
Label Value
Brand Century Spring
Ends Full Loop
Finish None
Initial Tension 0.4 lb
Length 2.75 in
Material Music Wire
Outside Diameter 0.3 in
Part Type Standard
Rate 1 lbs/in
SKU 80390CS
Sugg Max Deflection 4.4 in
Sugg Max Load 4.8 lbf
Wind Direction Left
Wire Diameter 0.031 in
Specs (in metric)
Label Value
Brand Century Spring
Ends Full Loop
Finish None
Initial Tension 0.18 kg
Length 69.85 mm
Material Music Wire
Outside Diameter 7.62 mm
Part Type Standard
Rate 0.18 N/mm
SKU 80390CS
Sugg Max Deflection 111.76 mm
Sugg Max Load 21.35 N
Wind Direction Left
Wire Diameter 0.79 mm