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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-528CS - 1 Inch 302/304 Stainless Steel Extension Springs

Inventory:           
Estimated Lead Time

The S-528CS 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 0.047 inches, an outside diameter of 0.25 inches, and a free length of 1 inches. It has an initial tension of 4 Pound and a maximum deflection of 0.22 inches. The S-528CS has a spring rate of 50 lbs/inch and a maximum load of 15 Pound Force. It features machine hooks on both ends. This extension spring is suitable for various applications.

At Century Spring, we pride ourselves on our fast shipping and extensive stock inventory. We understand the importance of timely delivery, which is why we strive to process and ship orders quickly. Additionally, our significant stock inventory ensures that we have a wide range of springs available for immediate shipment. We are proud to manufacture all of our products in the United States, maintaining high-quality standards and supporting local manufacturing. With Century Spring, you can count on fast shipping, ample stock, and American-made springs for your projects.

Download CAD
Unit System
Specs (in standard)
Label Value
A) Brand Century Spring
B) Sku S-528CS
C) Part Type Standard
D) Material 302/304 Stainless Steel
E) Wire Diameter 0.047 in
F) Outside Diameter 0.25 in
G) Length 1 in
H) End Type Machine Hook
I) End Position Random
J) Rate 50 lbs/in
K) Initial Tension 4 lb
L) Sugg Max Deflection 0.22 in
L) Sugg Max Load 15 lbf
O) Finish None
Specs (in metric)
Label Value
A) Brand Century Spring
B) Sku S-528CS
C) Part Type Standard
D) Material 302/304 Stainless Steel
E) Wire Diameter 1.19 mm
F) Outside Diameter 6.35 mm
G) Length 25.4 mm
H) End Type Machine Hook
I) End Position Random
J) Rate 8.76 N/mm
K) Initial Tension 1.81 kg
L) Sugg Max Deflection 5.59 mm
L) Sugg Max Load 66.72 N
O) Finish None