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.

158 DAYS

666CS - 1.50 Inch High Carbon Steel Extension Springs

Inventory:           
Estimated Lead Time

The 666CS is a regular extension spring manufactured by Century Spring. It is made from High Carbon steel and has a zinc finish. This spring has a wire diameter of 0.047 inches, an outside diameter of 0.312 inches, and a free length of 1.5 inches. It has an initial tension of 3 Pound and a maximum deflection of 0.55 inches. The 666CS has a spring rate of 18 lbs/inch and a maximum load of 12 Pound Force. It features double loop ends. The 666CS is a standard extension spring suitable for a variety of 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 ship our products as quickly as possible. With our significant stock inventory, including the 666CS, we can meet the demands of our customers and ensure that they have the springs they need when they need them. All of our springs are proudly made in the United States, guaranteeing quality and supporting local manufacturing. Trust Century Spring for your spring needs.

Download CAD
Unit System
Specs (in standard)
Label Value
A) Brand Century Spring
B) Sku 666CS
C) Part Type Standard
D) Material High Carbon Steel
E) Wire Diameter 0.047 in
F) Outside Diameter 0.312 in
G) Length 1.5 in
H) End Type Double Loop
I) End Position Random
J) Rate 18 lbs/in
K) Initial Tension 3 lb
L) Sugg Max Deflection 0.55 in
L) Sugg Max Load 12 lbf
O) Finish Zinc
Specs (in metric)
Label Value
A) Brand Century Spring
B) Sku 666CS
C) Part Type Standard
D) Material High Carbon Steel
E) Wire Diameter 1.19 mm
F) Outside Diameter 7.92 mm
G) Length 38.1 mm
H) End Type Double Loop
I) End Position Random
J) Rate 3.15 N/mm
K) Initial Tension 1.36 kg
L) Sugg Max Deflection 13.97 mm
L) Sugg Max Load 53.38 N
O) Finish Zinc