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
167 DAYS

B1-39CS - 1.38 Inch Music Wire Extension Springs

Inventory:           
Estimated Lead Time

The B1-39CS is a regular extension spring manufactured by Century Spring. It is made from Music Wire and features a black oxide finish. This spring has a wire diameter of 0.026 Inch and an outside diameter of 0.25 inches. The free length of the spring is 1.38 inches, and it has an initial tension of 0.4 Pound. With a maximum deflection of 2 Inch and a maximum load of 3.5 Pound Force, the B1-39CS is a reliable choice for various applications. It has full loop ends, providing secure attachment points.

At Century Spring, we take pride in our fast shipping and extensive stock inventory. This includes the B1-39CS spring, which is manufactured right here in the United States. With our efficient shipping process and ample supply, we ensure that customers can quickly receive the springs they need for their projects. Trust Century Spring for high-quality springs and reliable service.

Unit System
Specs (in standard)
Label Value
A) Brand Century Spring
B) Sku B1-39CS
C) Part Type Standard
D) Material Music Wire
E) Wire Diameter 0.026 in
F) Outside Diameter 0.25 in
G) Length 1.38 in
H) End Type Full Loop
I) End Position Random
J) Rate 1.6 lbs/in
K) Initial Tension 0.4 lb
L) Sugg Max Deflection 2 in
L) Sugg Max Load 3.5 lbf
O) Finish Black Oxide
Specs (in metric)
Label Value
A) Brand Century Spring
B) Sku B1-39CS
C) Part Type Standard
D) Material Music Wire
E) Wire Diameter 0.66 mm
F) Outside Diameter 6.35 mm
G) Length 35.05 mm
H) End Type Full Loop
I) End Position Random
J) Rate 0.28 N/mm
K) Initial Tension 0.18 kg
L) Sugg Max Deflection 50.8 mm
L) Sugg Max Load 15.57 N
O) Finish Black Oxide