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681CS - 1.63 Inch High Carbon Steel Extension Springs

Inventory Status
Limited Availability

The 681CS is a regular extension spring manufactured by Century Spring. This spring is made from High Carbon steel and has a zinc finish. It has a wire diameter of 0.08 inches, an outside diameter of 0.5 inches, and a free length of 1.63 inches. The 681CS has an initial tension of 9 Pound and a maximum deflection of 0.39 inches. It has a spring rate of 66 lbs/inch and a maximum load of 35 Pound Force. This spring features full loop ends and is suitable for various applications.

At Century Spring, we take pride in our fast shipping and extensive stock inventory. We understand the importance of timely delivery for our customers' projects. Rest assured, the 681CS and all our products are made in the United States. With our reliable shipping and ample supply, Century Spring ensures that you can quickly receive the springs you need.

Unit System
View Spec Sheet
Specs (in standard)
Label Value
Brand Century Spring
Ends Full Loop
Finish Zinc
Initial Tension 9 lb
Length 1.63 in
Material High Carbon Steel
Outside Diameter 0.5 in
Part Type Standard
Rate 66 lbs/in
SKU 681CS
Sugg Max Deflection 0.39 in
Sugg Max Load 35 lbf
Wind Direction Left
Wire Diameter 0.08 in
Specs (in metric)
Label Value
Brand Century Spring
Ends Full Loop
Finish Zinc
Initial Tension 4.08 kg
Length 41.4 mm
Material High Carbon Steel
Outside Diameter 12.7 mm
Part Type Standard
Rate 11.56 N/mm
SKU 681CS
Sugg Max Deflection 9.91 mm
Sugg Max Load 155.68 N
Wind Direction Left
Wire Diameter 2.03 mm