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A11-31CS - 1.28" 302/304 Stainless Steel Compression Spring

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Compression spring manufactured from 302/304 stainless steel with 7 coils and closed & ground ends. This spring features an O.D. of 0.484", and an I.D. of 0.392".

Unit System
Specs (in standard)
Label Value
Brand Century Spring
Display Name A11-31
Ends Closed & Ground
Finish None
Free Length 1.28 in
Inside Diameter 0.392 in
Material 302/304 Stainless Steel
Outside Diameter 0.484 in
Part Type Standard
Rate 13 lbs/in
SKU A11-31CS
Solid Length 0.33 in
Suggested Max Deflection 0.55 in
Suggested Max Load 7.3 lbf
Total Coils 7
Wire Diameter 0.046 in
Specs (in metric)
Label Value
Brand Century Spring
Display Name A11-31
Ends Closed & Ground
Finish None
Free Length 32.51 mm
Inside Diameter 9.96 mm
Material 302/304 Stainless Steel
Outside Diameter 12.29 mm
Part Type Standard
Rate 2.28 N/mm
SKU A11-31CS
Solid Length 8.38 mm
Suggested Max Deflection 13.97 mm
Suggested Max Load 32.47 N
Total Coils 7
Wire Diameter 1.17 mm
The compression spring A11-31CS is an essential component designed for applications requiring reliable force and energy storage. Crafted from high-quality 302/304 stainless steel, the A11-31 compression spring design exhibits exceptional tensile strength and resilience.

The A11-31 design is manufactured with a free length of 1.28", with an outer diameter of 0.484", an inner diameter of 0.392", and a total of 7 coils, expertly designed to deliver consistent compression characteristics including a rate of 13 lbs/in.

The A11-31CS 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 A11-31 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.