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91CS - 4 Inch High Carbon Steel Extension Springs

Inventory Status
Estimated Lead Time

The 91CS is an extension spring manufactured by Century Spring. It is made from High Carbon steel and has a zinc finish. This spring has a wire diameter of 0.047 Inch and an outside diameter of 0.562 inches. The free length of the spring is 4 inches, and it has an initial tension of 0.88 Pound. The maximum deflection of the spring is 7.6 inches, and it can handle a maximum load of 6.5 Pound Force. The 91CS is a regular extension spring with machine hook ends, suitable for a variety of applications.

At Century Spring, we take pride in our fast shipping and extensive stock inventory. We understand the importance of timely delivery, and that's why we ensure quick shipping for our products, including the 91CS. Additionally, all our springs are proudly made in the United States. With our reliable shipping and ample supply, Century Spring is your go-to destination for high-quality springs for any project.

Unit System
Specs (in standard)
Label Value
Brand Century Spring
Ends Machine Hook
Finish Zinc
Initial Tension 0.88 lb
Length 4 in
Material High Carbon Steel
Outside Diameter 0.562 in
Part Type Standard
Rate 0.76 lbs/in
SKU 91CS
Sugg Max Deflection 7.6 in
Sugg Max Load 6.5 lbf
Wind Direction Left
Wire Diameter 0.047 in
Specs (in metric)
Label Value
Brand Century Spring
Ends Machine Hook
Finish Zinc
Initial Tension 0.4 kg
Length 101.6 mm
Material High Carbon Steel
Outside Diameter 14.27 mm
Part Type Standard
Rate 0.13 N/mm
SKU 91CS
Sugg Max Deflection 193.04 mm
Sugg Max Load 28.91 N
Wind Direction Left
Wire Diameter 1.19 mm