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100 YRS

The Countdown to 100 Years of Century Spring!

Since 1927, Century Spring Corp has been the original industry-leading spring manufacturer for both stock and custom springs. Read about 100 Years of Century Spring here.

167 DAYS

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

Inventory:           
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
A) Brand Century Spring
B) Sku S-557CS
C) Part Type Standard
D) Material 302/304 Stainless Steel
E) Wire Diameter 0.032 in
F) Outside Diameter 0.312 in
G) Length 2.13 in
H) End Type Machine Hook
I) End Position Random
J) Rate 1.1 lbs/in
K) Initial Tension 0.5 lb
L) Sugg Max Deflection 2.8 in
L) Sugg Max Load 3.6 lbf
O) Finish None
Specs (in metric)
Label Value
A) Brand Century Spring
B) Sku S-557CS
C) Part Type Standard
D) Material 302/304 Stainless Steel
E) Wire Diameter 0.81 mm
F) Outside Diameter 7.92 mm
G) Length 54.1 mm
H) End Type Machine Hook
I) End Position Random
J) Rate 0.19 N/mm
K) Initial Tension 0.23 kg
L) Sugg Max Deflection 71.12 mm
L) Sugg Max Load 16.01 N
O) Finish None