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811 - 4.5 Inch Spring Steel Compression Spring

Inventory Status
Estimated Lead Time

Compression spring manufactured from Spring Steel with 13.8 coils and Closed & Ground ends. This spring features an O.D. of 1.375 Inch, and an I.D. of 1.021 Inch.

Unit System
Specs (in standard)
Label Value
Brand Century Spring
Display Name 811
Ends Closed & Ground
Finish Zinc
Free Length 4.5 in
Inside Diameter 1.021 in
Material Spring Steel
Outside Diameter 1.375 in
Part Type Standard
Rate 70 lbs/in
SKU 811CS
Solid Length 2.43 in
Suggested Max Deflection 1.7 in
Suggested Max Load 119 lbf
Total Coils 13.8
Wire Diameter 0.177 in
Specs (in metric)
Label Value
Brand Century Spring
Display Name 811
Ends Closed & Ground
Finish Zinc
Free Length 114.3 mm
Inside Diameter 25.93 mm
Material Spring Steel
Outside Diameter 34.93 mm
Part Type Standard
Rate 12.26 N/mm
SKU 811CS
Solid Length 61.72 mm
Suggested Max Deflection 43.18 mm
Suggested Max Load 529.31 N
Total Coils 13.8
Wire Diameter 4.5 mm
The compression spring 811CS is an essential component designed for applications requiring reliable force and energy storage. Crafted from high-quality hard drawn, the 811 compression spring design exhibits exceptional tensile strength and resilience.

The 811 design is manufactured with a free length of 4.5", with an outer diameter of 1.375", an inner diameter of 1.021", and a total of 13.8 coils, expertly designed to deliver consistent compression characteristics including a rate of 70 lbs/in.

The 811CS compression spring is ideally suited for use in a wide range of mechanical assemblies, including but not limited to automotive suspension systems, industrial machinery, and electronic devices.

In summary, the compression spring 811 design stands out for its superior material properties, thoughtful design, and versatility in application. It is a prime choice for engineers committed to excellence and innovation in their projects.