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12376CS - 5.75 Inch Spring Steel Extension Springs

The 12376CS is a regular extension spring manufactured by Century Spring. It is made from spring steel and has a zinc finish. This spring has a wire diameter of 0.12 Inch and an outside diameter of 0.953 inches. It has a free length of 5.75 Inch and an initial tension of 12 Pound. The 12376CS has a maximum deflection of 3.3 Inch and a maximum load of 56 Pound Force. It features machine hook ends and a left wind direction. This extension spring is suitable for various applications.

At Century Spring, we understand the importance of fast shipping and maintaining a significant stock inventory. We take pride in manufacturing our products, including the 12376CS, 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 Machine Hook
Finish Zinc
Initial Tension 12 lb
Length 5.75 in
Material Spring Steel
Outside Diameter 0.953 in
Part Type Standard
Rate 13 lbs/in
SKU 12376CS
Sugg Max Deflection 3.3 in
Sugg Max Load 56 lbf
Wind Direction Left
Wire Diameter 0.12 in
Specs (in metric)
Label Value
Brand Century Spring
Ends Machine Hook
Finish Zinc
Initial Tension 5.44 kg
Length 146.05 mm
Material Spring Steel
Outside Diameter 24.21 mm
Part Type Standard
Rate 2.28 N/mm
SKU 12376CS
Sugg Max Deflection 83.82 mm
Sugg Max Load 249.09 N
Wind Direction Left
Wire Diameter 3.05 mm
Inventory Status
In-stock
Estimated Lead Time
In-stock parts: usually ships in 12-24 hours
Quantity Price
1 - 49 $6.92
50 - 149 $6.58
150 - 299 $6.23
300 - 499 $5.89
500 - 749 $5.19
750 - 999 $4.50
1000+ Call for price