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K-81CS - 0.75" Spring Steel Compression Spring

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Compression spring manufactured from spring steel with 6 coils and closed & ground ends. This spring features an O.D. of 0.406", and an I.D. of 0.278".

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Unit System
Specs (in standard)
Label Value
Brand Century Spring
Display Name K-81
Ends Closed & Ground
Finish None
Free Length 0.75 in
Inside Diameter 0.278 in
Material Spring Steel
Outside Diameter 0.406 in
Part Type Standard
Rate 151 lbs/in
SKU K-81CS
Solid Length 0.38 in
Suggested Max Deflection 0.15 in
Suggested Max Load 22 lbf
Total Coils 6
Wire Diameter 0.064 in
Specs (in metric)
Label Value
Brand Century Spring
Display Name K-81
Ends Closed & Ground
Finish None
Free Length 19.05 mm
Inside Diameter 7.06 mm
Material Spring Steel
Outside Diameter 10.31 mm
Part Type Standard
Rate 26.44 N/mm
SKU K-81CS
Solid Length 9.65 mm
Suggested Max Deflection 3.81 mm
Suggested Max Load 97.86 N
Total Coils 6
Wire Diameter 1.63 mm
The compression spring K-81CS is an essential component designed for applications requiring reliable force and energy storage. Crafted from high-quality spring steel, the K-81 compression spring design exhibits exceptional tensile strength and resilience.

The K-81 design is manufactured with a free length of 0.75", with an outer diameter of 0.406", an inner diameter of 0.278", and a total of 6 coils, expertly designed to deliver consistent compression characteristics including a rate of 151 lbs/in.

The K-81CS 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 K-81 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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