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Century Spring

II-8CS - 0.69" Spring Steel Compression Spring

Inventory Status
Estimated Lead Time

Compression spring manufactured from spring steel with 3 coils and closed & ground ends. This spring features an O.D. of 1.109", and an I.D. of 0.869".

NOTE: The spring rate value for compression springs with 4 coils or less is a reference value.

Download CAD
Unit System
Specs (in standard)
Label Value
Brand Century Spring
Display Name II-8
Ends Closed & Ground
Finish None
Free Length 0.69 in
Inside Diameter 0.869 in
Material Spring Steel
Outside Diameter 1.109 in
Part Type Standard
Rate 308 lbs/in
SKU II-8CS
Solid Length 0.36 in
Suggested Max Deflection 0.16 in
Suggested Max Load 49 lbf
Total Coils 3
Wire Diameter 0.12 in
Specs (in metric)
Label Value
Brand Century Spring
Display Name II-8
Ends Closed & Ground
Finish None
Free Length 17.53 mm
Inside Diameter 22.07 mm
Material Spring Steel
Outside Diameter 28.17 mm
Part Type Standard
Rate 53.93 N/mm
SKU II-8CS
Solid Length 9.14 mm
Suggested Max Deflection 4.06 mm
Suggested Max Load 217.95 N
Total Coils 3
Wire Diameter 3.05 mm
The compression spring II-8CS is an essential component designed for applications requiring reliable force and energy storage. Crafted from high-quality spring steel, the II-8 compression spring design exhibits exceptional tensile strength and resilience.

The II-8 design is manufactured with a free length of 0.69", with an outer diameter of 1.109", an inner diameter of 0.869", and a total of 3 coils, expertly designed to deliver consistent compression characteristics including a rate of 308 lbs/in.

The II-8CS 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 II-8 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.

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