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U-90CS - 0.31" Music Wire Compression Spring

Inventory Status
Estimated Lead Time

Compression spring manufactured from music wire with 8 coils and closed & ground ends. This spring features an O.D. of 0.156", and an I.D. of 0.09".

Unit System
Specs (in standard)
Label Value
Brand Century Spring
Display Name U-90
Ends Closed & Ground
Finish Zinc
Free Length 0.31 in
Inside Diameter 0.09 in
Material Music Wire
Outside Diameter 0.156 in
Part Type Standard
Rate 153 lbs/in
SKU U-90CS
Solid Length 0.26 in
Suggested Max Deflection 0.05 in
Suggested Max Load 7.3 lbf
Total Coils 8
Wire Diameter 0.033 in
Specs (in metric)
Label Value
Brand Century Spring
Display Name U-90
Ends Closed & Ground
Finish Zinc
Free Length 7.87 mm
Inside Diameter 2.29 mm
Material Music Wire
Outside Diameter 3.96 mm
Part Type Standard
Rate 26.79 N/mm
SKU U-90CS
Solid Length 6.6 mm
Suggested Max Deflection 1.27 mm
Suggested Max Load 32.47 N
Total Coils 8
Wire Diameter 0.84 mm
The U-90 compression spring is engineered for optimal performance in demanding applications. Constructed from high-quality music wire 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-90CS compression spring is designed with a free length of 0.56" total of 10 coils, and a rate of 1.2 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-90 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.