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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

S-642CS - 1.38 Inch 302/304 Stainless Steel Extension Springs

Inventory:           
Estimated Lead Time

The S-642CS is a regular extension spring manufactured by Century Spring. It is made from 302/304 stainless steel and has a wire diameter of 0.054 inches. This spring has a free length of 1.38 inches and a maximum deflection of 0.56 inches. With an initial tension of 3 pounds, it can handle a maximum load of 14 pound force. The S-642CS has an outside diameter of 0.375 inch and a spring rate of 19 lbs/inch. It features machine hooks on both ends and is wound in a left direction.

Century Spring is proud to offer fast shipping and maintain a significant stock inventory. Our products, including the S-642CS, are proudly made in the United States. With our reliable shipping and ample supply, Century Spring ensures 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 S-642CS
C) Part Type Standard
D) Material 302/304 Stainless Steel
E) Wire Diameter 0.054 in
F) Outside Diameter 0.375 in
G) Length 1.38 in
H) End Type Machine Hook
I) End Position Random
J) Rate 19 lbs/in
K) Initial Tension 3 lb
L) Sugg Max Deflection 0.56 in
L) Sugg Max Load 14 lbf
O) Finish None
Specs (in metric)
Label Value
A) Brand Century Spring
B) Sku S-642CS
C) Part Type Standard
D) Material 302/304 Stainless Steel
E) Wire Diameter 1.37 mm
F) Outside Diameter 9.53 mm
G) Length 35.05 mm
H) End Type Machine Hook
I) End Position Random
J) Rate 3.33 N/mm
K) Initial Tension 1.36 kg
L) Sugg Max Deflection 14.22 mm
L) Sugg Max Load 62.27 N
O) Finish None