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12343CS - 5.81 Inch Spring Steel Extension Springs

The 12343CS is a regular extension spring manufactured by Century Spring. It features a machine hook on both ends for easy installation. Made from spring steel with a zinc finish, this spring has a free length of 5.81 inches and an initial tension of 6 pounds. With a maximum deflection of 3.8 inches and a maximum load of 28 pound force, it is suitable for various applications. The 12343CS has an outside diameter of 0.64 inches and a wire diameter of 0.082 inches. Its spring rate is 6 inches per pound. This standard extension spring is designed to provide reliable performance.

Century Spring takes pride in our fast shipping and extensive stock inventory. We understand the importance of timely delivery, and our efficient shipping process ensures that customers receive their orders promptly. Additionally, we are committed to producing high-quality products in the United States. When you choose Century Spring, you can trust that you are getting springs that are built to last and meet your specific needs. With our fast shipping and ample supply, we are dedicated to providing excellent service to our customers.

Unit System
View Spec Sheet
Specs (in standard)
Label Value
Brand Century Spring
Ends Machine Hook
Finish Zinc
Initial Tension 6 lb
Length 5.81 in
Material Spring Steel
Outside Diameter 0.64 in
Part Type Standard
Rate 6 lbs/in
SKU 12343CS
Sugg Max Deflection 3.8 in
Sugg Max Load 28 lbf
Wind Direction Left
Wire Diameter 0.082 in
Specs (in metric)
Label Value
Brand Century Spring
Ends Machine Hook
Finish Zinc
Initial Tension 2.72 kg
Length 147.57 mm
Material Spring Steel
Outside Diameter 16.26 mm
Part Type Standard
Rate 1.05 N/mm
SKU 12343CS
Sugg Max Deflection 96.52 mm
Sugg Max Load 124.54 N
Wind Direction Left
Wire Diameter 2.08 mm
Inventory Status
In-stock
Estimated Lead Time
In-stock parts: usually ships in 12-24 hours
Quantity Price
1 - 49 $4.59
50 - 149 $4.37
150 - 299 $4.14
300 - 499 $3.91
500 - 749 $3.45
750 - 999 $2.99
1000+ Call for price