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S-604CS - 4.25 Inch 302/304 Stainless Steel Extension Springs

Inventory Status
Estimated Lead Time

The S-604CS is a regular extension spring manufactured by Century Spring. It is made from 302/304 stainless steel and has a left wind direction. This spring has a wire diameter of 0.091 inches, an outside diameter of 0.75 inches, and a free length of 4.25 inches. It has an initial tension of 6 pounds and a maximum deflection of 2.9 inches. The S-604CS has a spring rate of 8.1 lbs/inch and can withstand a maximum load of 29 pound force. It features machine hook ends and is suitable for various applications.

At Century Spring, we take pride in our fast shipping and extensive stock inventory. Our springs, including the S-604CS, are 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 Machine Hook
Finish None
Initial Tension 7.2 lb
Length 4.25 in
Material 302/304 Stainless Steel
Outside Diameter 0.75 in
Part Type Standard
Rate 8.1 lbs/in
SKU S-604CS
Sugg Max Deflection 2.9 in
Sugg Max Load 29 lbf
Wind Direction Left
Wire Diameter 0.091 in
Specs (in metric)
Label Value
Brand Century Spring
Ends Machine Hook
Finish None
Initial Tension 3.27 kg
Length 107.95 mm
Material 302/304 Stainless Steel
Outside Diameter 19.05 mm
Part Type Standard
Rate 1.42 N/mm
SKU S-604CS
Sugg Max Deflection 73.66 mm
Sugg Max Load 128.99 N
Wind Direction Left
Wire Diameter 2.31 mm