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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

B3-31CS - 2.68 Inch Spring Steel Extension Springs

Inventory:           
Estimated Lead Time

The B3-31CS is a regular extension spring manufactured by Century Spring. It is made from spring steel and has a zinc finish. This spring has a wire diameter of 0.047 inches, an outside diameter of 0.25 inches, and a free length of 2.68 inches. It has an initial tension of 5 Pound and a maximum deflection of 0.71 inches. The B3-31CS has a spring rate of 16 lbs/inch and a maximum load of 16 Pound Force. It features machine hook ends and is suitable for various extension spring applications.

At Century Spring, we take pride in our fast shipping and extensive stock inventory. Our products, including the B3-31CS, are proudly made in the United States. With our efficient shipping and ample supply, Century Spring ensures that customers can quickly receive the springs they need for their projects. We are committed to providing high-quality springs and excellent service to meet our customers' needs.

Download CAD
Unit System
Specs (in standard)
Label Value
A) Brand Century Spring
B) Sku B3-31CS
C) Part Type Standard
D) Material Spring Steel
E) Wire Diameter 0.047 in
F) Outside Diameter 0.25 in
G) Length 2.68 in
H) End Type Machine Hook
I) End Position Random
J) Rate 16 lbs/in
K) Initial Tension 5 lb
L) Sugg Max Deflection 0.71 in
L) Sugg Max Load 16 lbf
O) Finish Zinc
Specs (in metric)
Label Value
A) Brand Century Spring
B) Sku B3-31CS
C) Part Type Standard
D) Material Spring Steel
E) Wire Diameter 1.19 mm
F) Outside Diameter 6.35 mm
G) Length 68.07 mm
H) End Type Machine Hook
I) End Position Random
J) Rate 2.8 N/mm
K) Initial Tension 2.27 kg
L) Sugg Max Deflection 18.03 mm
L) Sugg Max Load 71.17 N
O) Finish Zinc