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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.

198 DAYS

S-529CS - 1.38 Inch 302/304 Stainless Steel Extension Springs

Inventory:           
Estimated Lead Time

The S-529CS is an extension spring manufactured by Century Spring. It is made from 302/304 Stainless Steel and has a machine hook on both ends. This spring has a free length of 1.38 inches and a maximum deflection of 6.6 inches. It has an initial tension of 0.03 pounds and can handle a maximum load of 0.48 pound force. The S-529CS has an outside diameter of 0.25 inches and a wire diameter of 0.015 inches. With a spring rate of 0.07 lbs/inch, it is suitable for a variety of applications.

At Century Spring, we pride ourselves on our fast shipping and extensive stock inventory. Our springs, including the S-529CS, are proudly made in the United States. With our efficient shipping process and ample supply, we ensure that our customers can quickly receive the high-quality springs they need for their projects.

Download CAD
Unit System
Specs (in standard)
Label Value
A) Brand Century Spring
B) Sku S-529CS
C) Part Type Standard
D) Material 302/304 Stainless Steel
E) Wire Diameter 0.015 in
F) Outside Diameter 0.25 in
G) Length 1.38 in
H) End Type Machine Hook
I) End Position Random
J) Rate 0.07 lbs/in
K) Initial Tension 0.03 lb
L) Sugg Max Deflection 6.6 in
L) Sugg Max Load 0.48 lbf
O) Finish None
Specs (in metric)
Label Value
A) Brand Century Spring
B) Sku S-529CS
C) Part Type Standard
D) Material 302/304 Stainless Steel
E) Wire Diameter 0.38 mm
F) Outside Diameter 6.35 mm
G) Length 35.05 mm
H) End Type Machine Hook
I) End Position Random
J) Rate 0.01 N/mm
K) Initial Tension 0.01 kg
L) Sugg Max Deflection 167.64 mm
L) Sugg Max Load 2.14 N
O) Finish None