This browser is no longer supported. Upgrade to Microsoft Edge or switch to a supported browser, like Chrome, Safari, or Firefox, to explore the MW Components website.

We're sorry for the inconvenience.

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-631CS - 5 Inch 302/304 Stainless Steel Extension Springs

Inventory:           
Estimated Lead Time

The S-631CS 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 0.085 inches, an outside diameter of 0.843 inches, and a free length of 5 inches. It has an initial tension of 3 Pound and a maximum deflection of 4.9 inches. The S-631CS has a spring rate of 3.7 lbs/inch and a maximum load of 22 Pound Force. It is a full loop end spring, meaning the ends are rounded. The S-631CS is a standard extension spring 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 and ensuring that our customers have access to the springs they need when they need them. All our products, including the S-631CS, are proudly made in the United States. With our reliable shipping and ample supply, Century Spring is committed to providing exceptional service and quality products for all your spring needs.

Download CAD
Unit System
Specs (in standard)
Label Value
A) Brand Century Spring
B) Sku S-631CS
C) Part Type Standard
D) Material 302/304 Stainless Steel
E) Wire Diameter 0.085 in
F) Outside Diameter 0.843 in
G) Length 5 in
H) End Type Full Loop
I) End Position Random
J) Rate 3.7 lbs/in
K) Initial Tension 3 lb
L) Sugg Max Deflection 4.9 in
L) Sugg Max Load 22 lbf
O) Finish None
Specs (in metric)
Label Value
A) Brand Century Spring
B) Sku S-631CS
C) Part Type Standard
D) Material 302/304 Stainless Steel
E) Wire Diameter 2.16 mm
F) Outside Diameter 21.41 mm
G) Length 127 mm
H) End Type Full Loop
I) End Position Random
J) Rate 0.65 N/mm
K) Initial Tension 1.36 kg
L) Sugg Max Deflection 124.46 mm
L) Sugg Max Load 97.86 N
O) Finish None