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Century Spring

U-33CS - 1.19" Music Wire Compression Spring

Inventory Status
Estimated Lead Time

Compression spring manufactured from music wire with 20 coils and closed & ground ends. This spring features an O.D. of 0.234", and an I.D. of 0.174".

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Unit System
Specs (in standard)
Label Value
Brand Century Spring
Display Name U-33
Ends Closed & Ground
Finish Gold Iridite
Free Length 1.19 in
Inside Diameter 0.174 in
Material Music Wire
Outside Diameter 0.234 in
Part Type Standard
Rate 7.6 lbs/in
SKU U-33CS
Solid Length 0.6 in
Suggested Max Deflection 0.59 in
Suggested Max Load 4.5 lbf
Total Coils 20
Wire Diameter 0.03 in
Specs (in metric)
Label Value
Brand Century Spring
Display Name U-33
Ends Closed & Ground
Finish Gold Iridite
Free Length 30.23 mm
Inside Diameter 4.42 mm
Material Music Wire
Outside Diameter 5.94 mm
Part Type Standard
Rate 1.33 N/mm
SKU U-33CS
Solid Length 15.24 mm
Suggested Max Deflection 14.99 mm
Suggested Max Load 20.02 N
Total Coils 20
Wire Diameter 0.76 mm
The U-33CS compression spring is a meticulously engineered component designed for a wide range of industrial applications requiring reliable performance and durability. Crafted from premium 0.03" diameter music wire, the U-33 spring design exhibits reliable strength across its 20 active coils, withstanding repeated compression cycles with a maximum load of 4.5 lbf without succumbing to fatigue.

We manufacture the U-33 design to provide a compression spring that is 1.19" long at rest and provides a consistent rate of 7.6 lbs/in along its recommended maximum of 0.59" deflection. For best results, your application should fully accommodate the inner (0.174") and outer (0.234") diameters of this spring and be designed for its closed & ground end configuration.

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