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B2-5CS - 0.3" Spring Steel Compression Spring

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Compression spring manufactured from spring steel with 3.5 coils and closed ends. This spring features an O.D. of 0.328", and an I.D. of 0.264".

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 B2-5
Ends Closed
Finish Zinc
Free Length 0.3 in
Inside Diameter 0.264 in
Material Spring Steel
Outside Diameter 0.328 in
Part Type Standard
Rate 39 lbs/in
SKU B2-5CS
Solid Length 0.14 in
Suggested Max Deflection 0.1 in
Suggested Max Load 4 lbf
Total Coils 3.5
Wire Diameter 0.032 in
Specs (in metric)
Label Value
Brand Century Spring
Display Name B2-5
Ends Closed
Finish Zinc
Free Length 7.62 mm
Inside Diameter 6.71 mm
Material Spring Steel
Outside Diameter 8.33 mm
Part Type Standard
Rate 6.83 N/mm
SKU B2-5CS
Solid Length 3.56 mm
Suggested Max Deflection 2.54 mm
Suggested Max Load 17.79 N
Total Coils 3.5
Wire Diameter 0.81 mm
The B2-5 compression spring is engineered for optimal performance in demanding applications. Constructed from high-quality spring steel and designed with precision and durability in mind, this spring is an essential component for a variety of mechanical systems where reliable force and resilience are paramount.

The B2-5CS compression spring is designed with a free length of 1.25" total of 5.25 coils, and a rate of 284 lbs/in providing a balanced combination of flexibility and strength. This spring coil, and its closed & ground end configuration allows for efficient energy storage and release, making it suitable for applications requiring precise motion control.

The B2-5 spring design is ideal for use in industrial machinery, automotive systems, and various mechanical assemblies where reliable force application is crucial. Its robust construction and thoughtful design make it a dependable choice for engineers seeking a high-performance spring solution.

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