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O-91CS - 2.59 Inch Spring Steel Extension Springs

Inventory Status
Estimated Lead Time

The O-91CS is a regular extension spring manufactured by Century Spring. Made from spring steel, this spring has a wire diameter of 0.043 Inch and an outside diameter of 0.625 inches. It has a free length of 2.59 Inch and an initial tension of 0.4 Pound. The O-91CS can handle a maximum load of 4.4 Pound Force and has a maximum deflection of 7 inches. It features full loop ends and has a spring rate of 0.57 lbs/inch. This extension spring is suitable for a variety of applications.

At Century Spring, we pride ourselves on fast shipping and maintaining a significant stock inventory. Our products, including the O-91CS, are proudly made 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.

Download CAD
Unit System
Specs (in standard)
Label Value
Brand Century Spring
Ends Full Loop
Finish None
Initial Tension 0.4 lb
Length 2.59 in
Material Spring Steel
Outside Diameter 0.625 in
Part Type Standard
Rate 0.57 lbs/in
SKU O-91CS
Sugg Max Deflection 7 in
Sugg Max Load 4.4 lbf
Wind Direction Left
Wire Diameter 0.043 in
Specs (in metric)
Label Value
Brand Century Spring
Ends Full Loop
Finish None
Initial Tension 0.18 kg
Length 65.79 mm
Material Spring Steel
Outside Diameter 15.88 mm
Part Type Standard
Rate 0.1 N/mm
SKU O-91CS
Sugg Max Deflection 177.8 mm
Sugg Max Load 19.57 N
Wind Direction Left
Wire Diameter 1.09 mm