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Century Spring

L-4CS - 0.38" Spring Steel Compression Spring

Inventory Status
Estimated Lead Time

Compression spring manufactured from spring steel with 3 coils and closed ends. This spring features an O.D. of 0.5", and an I.D. of 0.402".

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 L-4
Ends Closed
Finish Zinc
Free Length 0.38 in
Inside Diameter 0.402 in
Material Spring Steel
Outside Diameter 0.5 in
Part Type Standard
Rate 90 lbs/in
SKU L-4CS
Solid Length 0.2 in
Suggested Max Deflection 0.1 in
Suggested Max Load 9.1 lbf
Total Coils 3
Wire Diameter 0.049 in
Specs (in metric)
Label Value
Brand Century Spring
Display Name L-4
Ends Closed
Finish Zinc
Free Length 9.65 mm
Inside Diameter 10.21 mm
Material Spring Steel
Outside Diameter 12.7 mm
Part Type Standard
Rate 15.76 N/mm
SKU L-4CS
Solid Length 5.08 mm
Suggested Max Deflection 2.54 mm
Suggested Max Load 40.48 N
Total Coils 3
Wire Diameter 1.24 mm
The L-4 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 L-4CS compression spring is designed with a free length of 0.41" total of 6.25 coils, and a rate of 21 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 L-4 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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