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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-579CS - 2.50 Inch 302/304 Stainless Steel Extension Springs

Inventory:           
Estimated Lead Time

The S-579CS is a regular extension spring manufactured by Century Spring. It is made from 302/304 stainless steel and has a clean, unfinished appearance. This spring has a wire diameter of 0.054 inches, an outside diameter of 0.5 inches, and a free length of 2.5 inches. It has an initial tension of 2 Pound and a maximum deflection of 2.5 inches. The S-579CS has a spring rate of 3.4 lbs/inch and can support a maximum load of 9.9 Pound Force. It features machine hooks on both ends, providing secure attachment points. This extension spring is suitable for a variety of applications.

At Century Spring, we pride ourselves on fast shipping and maintaining a significant stock inventory. We understand the importance of timely delivery, and our efficient shipping process ensures that customers receive their orders promptly. Additionally, our extensive stock inventory allows us to fulfill orders quickly, minimizing any potential delays. We are proud to manufacture our springs in the United States, ensuring high-quality and reliable products. With Century Spring, you can trust that you'll receive the springs you need for your projects efficiently and made with top-notch craftsmanship.

Download CAD
Unit System
Specs (in standard)
Label Value
A) Brand Century Spring
B) Sku S-579CS
C) Part Type Standard
D) Material 302/304 Stainless Steel
E) Wire Diameter 0.054 in
F) Outside Diameter 0.5 in
G) Length 2.5 in
H) End Type Machine Hook
I) End Position Random
J) Rate 3.4 lbs/in
K) Initial Tension 2 lb
L) Sugg Max Deflection 2.5 in
L) Sugg Max Load 9.9 lbf
O) Finish None
Specs (in metric)
Label Value
A) Brand Century Spring
B) Sku S-579CS
C) Part Type Standard
D) Material 302/304 Stainless Steel
E) Wire Diameter 1.37 mm
F) Outside Diameter 12.7 mm
G) Length 63.5 mm
H) End Type Machine Hook
I) End Position Random
J) Rate 0.6 N/mm
K) Initial Tension 0.91 kg
L) Sugg Max Deflection 63.5 mm
L) Sugg Max Load 44.04 N
O) Finish None