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N-133CS - 1.25" Spring Steel Compression Spring

Inventory Status
Estimated Lead Time

Compression spring manufactured from spring steel with 11 coils and closed & ground ends. This spring features an O.D. of 0.437", and an I.D. of 0.309".

Unit System
Specs (in standard)
Label Value
Brand Century Spring
Display Name N-133
Ends Closed & Ground
Finish Zinc
Free Length 1.25 in
Inside Diameter 0.309 in
Material Spring Steel
Outside Diameter 0.437 in
Part Type Standard
Rate 51 lbs/in
SKU N-133CS
Solid Length 0.7 in
Suggested Max Deflection 0.41 in
Suggested Max Load 21 lbf
Total Coils 11
Wire Diameter 0.064 in
Specs (in metric)
Label Value
Brand Century Spring
Display Name N-133
Ends Closed & Ground
Finish Zinc
Free Length 31.75 mm
Inside Diameter 7.85 mm
Material Spring Steel
Outside Diameter 11.1 mm
Part Type Standard
Rate 8.93 N/mm
SKU N-133CS
Solid Length 17.78 mm
Suggested Max Deflection 10.41 mm
Suggested Max Load 93.41 N
Total Coils 11
Wire Diameter 1.63 mm
The compression spring N-133CS is an essential component designed for applications requiring reliable force and energy storage. Crafted from high-quality spring steel, the N-133 compression spring design exhibits exceptional tensile strength and resilience.

The N-133 design is manufactured with a free length of 1.25", with an outer diameter of 0.437", an inner diameter of 0.309", and a total of 11 coils, expertly designed to deliver consistent compression characteristics including a rate of 51 lbs/in.

The N-133CS 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 N-133 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.