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

B1-61CS - 2.03 Inch 302/304 Stainless Steel Extension Springs

Inventory:           
Estimated Lead Time

The B1-61CS is a regular extension spring manufactured by Century Spring. This spring is made from 302/304 stainless steel and has a wire diameter of 0.046 inches. It has an outside diameter of 0.5 inch and a free length of 2.03 inches. The B1-61CS has a spring rate of 2.5 lbs/inch and an initial tension of 0.8 pound. It can handle a maximum load of 6.4 pound force and has a maximum deflection of 2.2 inches. This spring features full loop ends and is 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, which is why we strive to get your order to you as quickly as possible. With our large selection of springs, including the B1-61CS, you can trust that we have the products you need readily available. Additionally, all of our springs are proudly made in the United States, ensuring high-quality craftsmanship. Trust Century Spring for your spring needs and experience the convenience of our fast shipping and reliable inventory.

Download CAD
Unit System
Specs (in standard)
Label Value
A) Brand Century Spring
B) Sku B1-61CS
C) Part Type Standard
D) Material 302/304 Stainless Steel
E) Wire Diameter 0.046 in
F) Outside Diameter 0.5 in
G) Length 2.03 in
H) End Type Full Loop
I) End Position Random
J) Rate 2.5 lbs/in
K) Initial Tension 0.8 lb
L) Sugg Max Deflection 2.2 in
L) Sugg Max Load 6.4 lbf
O) Finish None
Specs (in metric)
Label Value
A) Brand Century Spring
B) Sku B1-61CS
C) Part Type Standard
D) Material 302/304 Stainless Steel
E) Wire Diameter 1.17 mm
F) Outside Diameter 12.7 mm
G) Length 51.56 mm
H) End Type Full Loop
I) End Position Random
J) Rate 0.44 N/mm
K) Initial Tension 0.36 kg
L) Sugg Max Deflection 55.88 mm
L) Sugg Max Load 28.47 N
O) Finish None