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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

90394SCS - 4 Inch 316 Stainless Steel Extension Springs

Inventory:           
Estimated Lead Time

The 90394SCS is a regular extension spring manufactured by Century Spring. It is made from 316 stainless steel and has a passivated finish. This spring has a wire diameter of 0.029 inches, an outside diameter of 0.25 inches, and a free length of 4 inches. It has an initial tension of 0.46 pound and a maximum deflection of 1.581 inches. The 90394SCS has a spring rate of 0.66 lbs/inch and a maximum load of 1.51 pound force. It features machine hook ends and is suitable for various extension spring applications.

At Century Spring, we pride ourselves on fast shipping and maintaining a significant stock inventory. Our springs, including the 90394SCS, are proudly made in the United States. With our efficient shipping process and ample supply, Century Spring ensures that customers can quickly receive the high-quality springs they need for their projects.

Download CAD
Unit System
Specs (in standard)
Label Value
A) Brand Century Spring
B) Sku 90394SCS
C) Part Type Standard
D) Material 316 Stainless Steel
E) Wire Diameter 0.029 in
F) Outside Diameter 0.25 in
G) Length 4 in
H) End Type Machine Hook
I) End Position Random
J) Rate 0.66 lbs/in
K) Initial Tension 0.46 lb
L) Sugg Max Deflection 1.581 in
N) Sugg Max Load 1.51 lbf
O) Finish Passivated
Specs (in metric)
Label Value
A) Brand Century Spring
B) Sku 90394SCS
C) Part Type Standard
D) Material 316 Stainless Steel
E) Wire Diameter 0.74 mm
F) Outside Diameter 6.35 mm
G) Length 101.6 mm
H) End Type Machine Hook
I) End Position Random
J) Rate 0.12 N/mm
K) Initial Tension 0.21 kg
L) Sugg Max Deflection 40.16 mm
N) Sugg Max Load 6.72 N
O) Finish Passivated