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Century Spring

72478CS - 2.5" Music Wire Compression Spring

Inventory Status
Estimated Lead Time

Compression spring manufactured from music wire with 10.4 coils and closed & ground ends. This spring features an O.D. of 0.975", and an I.D. of 0.679".

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Unit System
Specs (in standard)
Label Value
Brand Century Spring
Display Name 72478
Ends Closed & Ground
Finish None
Free Length 2.5 in
Inside Diameter 0.679 in
Material Music Wire
Outside Diameter 0.975 in
Part Type Standard
Rate 147 lbs/in
SKU 72478CS
Solid Length 1.54 in
Suggested Max Deflection 0.95 in
Suggested Max Load 139 lbf
Total Coils 10.4
Wire Diameter 0.148 in
Specs (in metric)
Label Value
Brand Century Spring
Display Name 72478
Ends Closed & Ground
Finish None
Free Length 63.5 mm
Inside Diameter 17.25 mm
Material Music Wire
Outside Diameter 24.77 mm
Part Type Standard
Rate 25.74 N/mm
SKU 72478CS
Solid Length 39.12 mm
Suggested Max Deflection 24.13 mm
Suggested Max Load 618.27 N
Total Coils 10.4
Wire Diameter 3.76 mm
The 72478CS compression spring is a meticulously engineered component designed for a wide range of industrial applications requiring reliable performance and durability. Crafted from premium 0.148" diameter music wire, the 72478 spring design exhibits reliable strength across its 10.4 active coils, withstanding repeated compression cycles with a maximum load of 139 lbf without succumbing to fatigue.

We manufacture the 72478 design to provide a compression spring that is 2.5" long at rest and provides a consistent rate of 147 lbs/in along its recommended maximum of 0.95" deflection. For best results, your application should fully accommodate the inner (0.679") and outer (0.975") diameters of this spring and be designed for its closed & ground end configuration.

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