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S-557CS - 2.13 Inch 302/304 Stainless Steel Extension Springs

Inventory Status
Estimated Lead Time

The S-557CS is a regular extension spring manufactured by Century Spring. It is made from 302/304 stainless steel and has a natural finish. This spring has a wire diameter of 0.032 inch and an outside diameter of 0.312 inches. It has a free length of 2.13 inches and an initial tension of 0.5 pound. The S-557CS has a maximum deflection of 2.8 inches and a maximum load of 3.6 pound force. It features machine hook ends and has a spring rate of 1.1 lbs/inch. This extension spring is suitable for various applications.

Century Spring offers fast shipping and maintains a significant stock inventory. We are proud to manufacture our springs 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 0.5 lb
Length 2.13 in
Material 302/304 Stainless Steel
Outside Diameter 0.312 in
Part Type Standard
Rate 1.1 lbs/in
SKU S-557CS
Sugg Max Deflection 2.8 in
Sugg Max Load 3.6 lbf
Wind Direction Left
Wire Diameter 0.032 in
Specs (in metric)
Label Value
Brand Century Spring
Ends Machine Hook
Finish None
Initial Tension 0.23 kg
Length 54.1 mm
Material 302/304 Stainless Steel
Outside Diameter 7.92 mm
Part Type Standard
Rate 0.19 N/mm
SKU S-557CS
Sugg Max Deflection 71.12 mm
Sugg Max Load 16.01 N
Wind Direction Left
Wire Diameter 0.81 mm