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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-577CS - 3 Inch 302/304 Stainless Steel Extension Springs

Inventory:           
Estimated Lead Time

The S-577CS is an extension spring manufactured by Century Spring. This regular extension spring is made from 302/304 stainless steel and has a wire diameter of 0.041 inches. It has a free length of 3 inches and an outside diameter of 0.437 inches. The spring has an initial tension of 0.7 pound and a maximum deflection of 4.6 inches. It has a spring rate of 0.97 lbs/inch and can withstand a maximum load of 5.2 pound force. The S-577CS features machine hook ends and is suitable for various applications.

At Century Spring, we take pride in our fast shipping and extensive stock inventory. We understand the importance of timely delivery, and our efficient shipping ensures that you receive your springs promptly. Additionally, our significant stock inventory means that we have the S-577CS and many other springs readily available for immediate shipment. As an American company, we are committed to manufacturing our products in the United States, ensuring quality and supporting local industries. Trust Century Spring to provide you with the springs you need, delivered quickly and made with care.

Download CAD
Unit System
Specs (in standard)
Label Value
A) Brand Century Spring
B) Sku S-577CS
C) Part Type Standard
D) Material 302/304 Stainless Steel
E) Wire Diameter 0.041 in
F) Outside Diameter 0.437 in
G) Length 3 in
H) End Type Machine Hook
I) End Position Random
J) Rate 0.97 lbs/in
K) Initial Tension 0.7 lb
L) Sugg Max Deflection 4.6 in
L) Sugg Max Load 5.2 lbf
O) Finish None
Specs (in metric)
Label Value
A) Brand Century Spring
B) Sku S-577CS
C) Part Type Standard
D) Material 302/304 Stainless Steel
E) Wire Diameter 1.04 mm
F) Outside Diameter 11.1 mm
G) Length 76.2 mm
H) End Type Machine Hook
I) End Position Random
J) Rate 0.17 N/mm
K) Initial Tension 0.32 kg
L) Sugg Max Deflection 116.84 mm
L) Sugg Max Load 23.13 N
O) Finish None