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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

B5-37CS - 2.78 Inch Spring Steel Extension Springs

Inventory:           
Estimated Lead Time

The B5-37CS is a regular extension spring manufactured by Century Spring. It is made from spring steel and has a natural finish. This spring has a free length of 2.78 inches and an outside diameter of 0.359 inches. It has an initial tension of 4 pounds and a maximum deflection of 1.1 inches. The B5-37CS has a spring rate of 12 lbs/inch and can withstand a maximum load of 17 pound force. It features machine hooks on both ends and is wound in a left-hand direction. This extension spring is designed for a variety of applications and is a reliable choice for your needs.

At Century Spring, we take pride in our fast shipping and extensive stock inventory. We understand the importance of receiving your springs promptly, which is why we prioritize efficient shipping. Additionally, our significant stock inventory ensures that we have the springs you need readily available. All our springs, including the B5-37CS, are proudly made in the United States. By choosing Century Spring, you can trust that you are getting high-quality products manufactured right here in the USA.

Download CAD
Unit System
Specs (in standard)
Label Value
A) Brand Century Spring
B) Sku B5-37CS
C) Part Type Standard
D) Material Spring Steel
E) Wire Diameter 0.056 in
F) Outside Diameter 0.359 in
G) Length 2.78 in
H) End Type Machine Hook
I) End Position Random
J) Rate 12 lbs/in
K) Initial Tension 4 lb
L) Sugg Max Deflection 1.1 in
L) Sugg Max Load 17 lbf
O) Finish None
Specs (in metric)
Label Value
A) Brand Century Spring
B) Sku B5-37CS
C) Part Type Standard
D) Material Spring Steel
E) Wire Diameter 1.42 mm
F) Outside Diameter 9.12 mm
G) Length 70.61 mm
H) End Type Machine Hook
I) End Position Random
J) Rate 2.1 N/mm
K) Initial Tension 1.81 kg
L) Sugg Max Deflection 27.94 mm
L) Sugg Max Load 75.62 N
O) Finish None