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U-40CS - 0.69" Spring Steel Compression Spring

Inventory Status
Estimated Lead Time

Compression spring manufactured from spring steel with 8 coils and closed & ground ends. This spring features an O.D. of 0.328", and an I.D. of 0.234".

Unit System
Specs (in standard)
Label Value
Brand Century Spring
Display Name U-40
Ends Closed & Ground
Finish Zinc
Free Length 0.69 in
Inside Diameter 0.234 in
Material Spring Steel
Outside Diameter 0.328 in
Part Type Standard
Rate 53 lbs/in
SKU U-40CS
Solid Length 0.38 in
Suggested Max Deflection 0.22 in
Suggested Max Load 12 lbf
Total Coils 8
Wire Diameter 0.047 in
Specs (in metric)
Label Value
Brand Century Spring
Display Name U-40
Ends Closed & Ground
Finish Zinc
Free Length 17.53 mm
Inside Diameter 5.94 mm
Material Spring Steel
Outside Diameter 8.33 mm
Part Type Standard
Rate 9.28 N/mm
SKU U-40CS
Solid Length 9.65 mm
Suggested Max Deflection 5.59 mm
Suggested Max Load 53.38 N
Total Coils 8
Wire Diameter 1.19 mm
The U-40 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 U-40CS compression spring is designed with a free length of 1.13" total of 10 coils, and a rate of 5.3 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 U-40 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.