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4099-BCS - 5.38" Oil Tempered Compression Spring

Inventory Status
Estimated Lead Time

Compression spring manufactured from oil tempered with 3.63 coils and closed & ground ends. This spring features an O.D. of 6.25", and an I.D. of 5.25".

NOTE: The spring rate value for compression springs with 4 coils or less is a reference value.

Unit System
Specs (in standard)
Label Value
Brand Century Spring
Display Name 4099-B
Ends Closed & Ground
Finish None
Free Length 5.38 in
Inside Diameter 5.25 in
Material Oil Tempered
Outside Diameter 6.25 in
Part Type Standard
Rate 291 lbs/in
SKU 4099-BCS
Solid Length 1.81 in
Suggested Max Deflection 1.8 in
Suggested Max Load 529 lbf
Total Coils 3.63
Wire Diameter 0.5 in
Specs (in metric)
Label Value
Brand Century Spring
Display Name 4099-B
Ends Closed & Ground
Finish None
Free Length 136.65 mm
Inside Diameter 133.35 mm
Material Oil Tempered
Outside Diameter 158.75 mm
Part Type Standard
Rate 50.95 N/mm
SKU 4099-BCS
Solid Length 45.97 mm
Suggested Max Deflection 45.72 mm
Suggested Max Load 2352.99 N
Total Coils 3.63
Wire Diameter 12.7 mm
The compression spring 4099-BCS is an essential component designed for applications requiring reliable force and energy storage. Crafted from high-quality oil tempered, the 4099-B compression spring design exhibits exceptional tensile strength and resilience.

The 4099-B design is manufactured with a free length of 5.38", with an outer diameter of 6.25", an inner diameter of 5.25", and a total of 3.63 coils, expertly designed to deliver consistent compression characteristics including a rate of 291 lbs/in.

The 4099-BCS 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 4099-B 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.