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Century Spring

11551CS - 1.31" Spring Steel Compression Spring

Inventory Status
Estimated Lead Time

Compression spring manufactured from spring steel with 4 coils and closed & ground ends. This spring features an O.D. of 1.359", and an I.D. of 1.135".

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 11551
Ends Closed & Ground
Finish Zinc
Free Length 1.31 in
Inside Diameter 1.135 in
Material Spring Steel
Outside Diameter 1.359 in
Part Type Standard
Rate 58 lbs/in
SKU 11551CS
Solid Length 0.56 in
Suggested Max Deflection 0.57 in
Suggested Max Load 33 lbf
Total Coils 4
Wire Diameter 0.112 in
Specs (in metric)
Label Value
Brand Century Spring
Display Name 11551
Ends Closed & Ground
Finish Zinc
Free Length 33.27 mm
Inside Diameter 28.83 mm
Material Spring Steel
Outside Diameter 34.52 mm
Part Type Standard
Rate 10.16 N/mm
SKU 11551CS
Solid Length 14.22 mm
Suggested Max Deflection 14.48 mm
Suggested Max Load 146.78 N
Total Coils 4
Wire Diameter 2.84 mm
The compression spring 11551CS is an essential component designed for applications requiring reliable force and energy storage. Crafted from high-quality spring steel, the 11551 compression spring design exhibits exceptional tensile strength and resilience.

The 11551 design is manufactured with a free length of 1.31", with an outer diameter of 1.359", an inner diameter of 1.135", and a total of 4 coils, expertly designed to deliver consistent compression characteristics including a rate of 58 lbs/in.

The 11551CS 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 11551 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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