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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

M-63CS - 1.56 Inch 302/304 Stainless Steel Extension Springs

Inventory:           
Estimated Lead Time

The M-63CS is a regular extension spring manufactured by Century Spring. It is made from 302/304 Stainless Steel and has a machine hook on each end. This spring has a free length of 1.56 inches and an outside diameter of 0.25 inches. It has an initial tension of 0.4 pounds and a maximum deflection of 1.8 inches. The M-63CS has a maximum load of 2.7 pound force and a spring rate of 1.3 lbs/inch. It weighs 0.006 pounds and is wound in a left direction. This spring is suitable for various applications.

At Century Spring, we pride ourselves on fast shipping and maintaining a significant stock inventory. Our products, including the M-63CS, are made 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.

Download CAD
Unit System
Specs (in standard)
Label Value
A) Brand Century Spring
B) Sku M-63CS
C) Part Type Standard
D) Material 302/304 Stainless Steel
E) Wire Diameter 0.027 in
F) Outside Diameter 0.25 in
G) Length 1.56 in
H) End Type Machine Hook
I) End Position Random
J) Rate 1.3 lbs/in
K) Initial Tension 0.4 lb
L) Sugg Max Deflection 1.8 in
L) Sugg Max Load 2.7 lbf
O) Finish None
Specs (in metric)
Label Value
A) Brand Century Spring
B) Sku M-63CS
C) Part Type Standard
D) Material 302/304 Stainless Steel
E) Wire Diameter 0.69 mm
F) Outside Diameter 6.35 mm
G) Length 39.62 mm
H) End Type Machine Hook
I) End Position Random
J) Rate 0.23 N/mm
K) Initial Tension 0.18 kg
L) Sugg Max Deflection 45.72 mm
L) Sugg Max Load 12.01 N
O) Finish None