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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

B1-42CS - 1.81 Inch Spring Steel Extension Springs

Inventory:           
Estimated Lead Time

The B1-42CS is a regular extension spring manufactured by Century Spring. This spring is made from spring steel and has a natural finish. It has a wire diameter of 0.0625 inches, an outer diameter of 0.5 inches, and a free length of 1.81 inches. The B1-42CS has an initial tension of 3 Pound and a maximum deflection of 0.87 inches. It has a spring rate of 16 lbs/inch and a maximum load of 17 Pound Force. The ends of this spring are full loops, providing secure attachment points. The B1-42CS is a reliable extension spring suitable for a variety of applications.

At Century Spring, we understand the importance of fast shipping and maintaining a significant stock inventory. We are proud to manufacture our springs in the United States, ensuring high-quality products for our customers. With our efficient shipping process and ample supply, we strive to provide prompt delivery of springs like the B1-42CS to meet all your project needs.

Download CAD
Unit System
Specs (in standard)
Label Value
A) Brand Century Spring
B) Sku B1-42CS
C) Part Type Standard
D) Material Spring Steel
E) Wire Diameter 0.0625 in
F) Outside Diameter 0.5 in
G) Length 1.81 in
H) End Type Full Loop
I) End Position Random
J) Rate 16 lbs/in
K) Initial Tension 3.6 lb
L) Sugg Max Deflection 0.87 in
L) Sugg Max Load 17 lbf
O) Finish None
Specs (in metric)
Label Value
A) Brand Century Spring
B) Sku B1-42CS
C) Part Type Standard
D) Material Spring Steel
E) Wire Diameter 1.59 mm
F) Outside Diameter 12.7 mm
G) Length 45.97 mm
H) End Type Full Loop
I) End Position Random
J) Rate 2.8 N/mm
K) Initial Tension 1.63 kg
L) Sugg Max Deflection 22.1 mm
L) Sugg Max Load 75.62 N
O) Finish None