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Century Spring

2731CS - 0.31" Spring Steel Compression Spring

Inventory Status
Estimated Lead Time

Compression spring manufactured from spring steel with 3 coils and closed ends. This spring features an O.D. of 0.343", and an I.D. of 0.275".

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 2731
Ends Closed
Finish Zinc
Free Length 0.31 in
Inside Diameter 0.275 in
Material Spring Steel
Outside Diameter 0.343 in
Part Type Standard
Rate 65 lbs/in
SKU 2731CS
Solid Length 0.14 in
Suggested Max Deflection 0.07 in
Suggested Max Load 4.6 lbf
Total Coils 3
Wire Diameter 0.034 in
Specs (in metric)
Label Value
Brand Century Spring
Display Name 2731
Ends Closed
Finish Zinc
Free Length 7.87 mm
Inside Diameter 6.99 mm
Material Spring Steel
Outside Diameter 8.71 mm
Part Type Standard
Rate 11.38 N/mm
SKU 2731CS
Solid Length 3.56 mm
Suggested Max Deflection 1.78 mm
Suggested Max Load 20.46 N
Total Coils 3
Wire Diameter 0.86 mm
The compression spring 2731CS is an essential component designed for applications requiring reliable force and energy storage. Crafted from high-quality spring steel, the 2731 compression spring design exhibits exceptional tensile strength and resilience.

The 2731 design is manufactured with a free length of 0.31", with an outer diameter of 0.343", an inner diameter of 0.275", and a total of 3 coils, expertly designed to deliver consistent compression characteristics including a rate of 65 lbs/in.

The 2731CS 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 2731 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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