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.

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

Inventory Status
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.

Unit System
Specs (in standard)
Label Value
Brand Century Spring
Ends Machine Hook
Finish None
Initial Tension 0.7 lb
Length 3 in
Material 302/304 Stainless Steel
Outside Diameter 0.437 in
Part Type Standard
Rate 0.97 lbs/in
SKU S-577CS
Sugg Max Deflection 4.6 in
Sugg Max Load 5.2 lbf
Wind Direction Left
Wire Diameter 0.041 in
Specs (in metric)
Label Value
Brand Century Spring
Ends Machine Hook
Finish None
Initial Tension 0.32 kg
Length 76.2 mm
Material 302/304 Stainless Steel
Outside Diameter 11.1 mm
Part Type Standard
Rate 0.17 N/mm
SKU S-577CS
Sugg Max Deflection 116.84 mm
Sugg Max Load 23.13 N
Wind Direction Left
Wire Diameter 1.04 mm