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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

B1-28CS - 1.50 Inch 302/304 Stainless Steel Extension Springs

Inventory:           
Estimated Lead Time

The B1-28CS is a regular extension spring manufactured by Century Spring. This spring is made from 302/304 Stainless Steel and has a wire diameter of 0.039 inches. It has an outside diameter of 0.359 Inch and a free length of 1.5 inches. The B1-28CS has an initial tension of 0.8 Pound and a maximum deflection of 1.2 inches. It has a spring rate of 3.8 lbs/inch and a maximum load of 5.5 Pound Force. The ends of this spring are machine hooks. The B1-28CS is a reliable and versatile 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 for our customers, and that's why we prioritize efficient shipping processes. Additionally, our significant stock inventory ensures that we have a wide range of springs available for immediate shipment. We are proud to manufacture all our springs in the United States, ensuring high-quality standards and supporting local manufacturing. With Century Spring, you can count on fast shipping, ample supply, and American-made excellence.

Download CAD
Unit System
Specs (in standard)
Label Value
A) Brand Century Spring
B) Sku B1-28CS
C) Part Type Standard
D) Material 302/304 Stainless Steel
E) Wire Diameter 0.039 in
F) Outside Diameter 0.359 in
G) Length 1.5 in
H) End Type Machine Hook
I) End Position Random
J) Rate 3.8 lbs/in
K) Initial Tension 0.8 lb
L) Sugg Max Deflection 1.2 in
L) Sugg Max Load 5.5 lbf
O) Finish None
Specs (in metric)
Label Value
A) Brand Century Spring
B) Sku B1-28CS
C) Part Type Standard
D) Material 302/304 Stainless Steel
E) Wire Diameter 0.99 mm
F) Outside Diameter 9.12 mm
G) Length 38.1 mm
H) End Type Machine Hook
I) End Position Random
J) Rate 0.67 N/mm
K) Initial Tension 0.36 kg
L) Sugg Max Deflection 30.48 mm
L) Sugg Max Load 24.46 N
O) Finish None