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81111SCS - 4.50 Inch 302/304 Stainless Steel Extension Springs

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Estimated Lead Time

The 81111SCS is a regular extension spring manufactured by Century Spring. It is made from high-quality 302/304 stainless steel and has a wire diameter of 0.115 inches. This spring has an outside diameter of 1.25 Inch and a free length of 4.5 inches. It has an initial tension of 3 Pound and a maximum deflection of 3.7 inches. The 81111SCS has a spring rate of 7.5 lbs/inch and can handle a maximum load of 31 Pound Force. It is a left-wind spring with full loop ends. This extension spring is designed for various applications and is suitable for use in regular extension spring setups.

At Century Spring, we take pride in our fast shipping and extensive stock inventory. We understand the importance of timely delivery, which is why we strive to ship our products quickly to our customers. With our significant stock inventory, including the 81111SCS, we ensure that we have the springs you need readily available. Additionally, we are proud to say that all our springs are made in the United States. By manufacturing our springs domestically, we can guarantee their quality and reliability. Trust Century Spring for your spring needs, and experience our efficient shipping and superior product selection firsthand.

Unit System
Specs (in standard)
Label Value
Brand Century Spring
Ends Full Loop
Finish None
Initial Tension 3 lb
Length 4.5 in
Material 302/304 Stainless Steel
Outside Diameter 1.25 in
Part Type Standard
Rate 7.5 lbs/in
SKU 81111SCS
Sugg Max Deflection 3.7 in
Sugg Max Load 31 lbf
Wire Diameter 0.115 in
Specs (in metric)
Label Value
Brand Century Spring
Ends Full Loop
Finish None
Initial Tension 1.36 kg
Length 114.3 mm
Material 302/304 Stainless Steel
Outside Diameter 31.75 mm
Part Type Standard
Rate 1.31 N/mm
SKU 81111SCS
Sugg Max Deflection 93.98 mm
Sugg Max Load 137.89 N
Wire Diameter 2.92 mm