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Century Spring

12530CS - 1.31" Music Wire Compression Spring

Inventory Status
Estimated Lead Time

Compression spring manufactured from music wire with 10.5 coils and closed ends. This spring features an O.D. of 0.406", and an I.D. of 0.33".

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Unit System
Specs (in standard)
Label Value
Brand Century Spring
Display Name 12530
Ends Closed
Finish None
Free Length 1.31 in
Inside Diameter 0.33 in
Material Music Wire
Outside Diameter 0.406 in
Part Type Standard
Rate 7.1 lbs/in
SKU 12530CS
Solid Length 0.44 in
Suggested Max Deflection 0.88 in
Suggested Max Load 6.2 lbf
Total Coils 10.5
Wire Diameter 0.038 in
Specs (in metric)
Label Value
Brand Century Spring
Display Name 12530
Ends Closed
Finish None
Free Length 33.27 mm
Inside Diameter 8.38 mm
Material Music Wire
Outside Diameter 10.31 mm
Part Type Standard
Rate 1.24 N/mm
SKU 12530CS
Solid Length 11.18 mm
Suggested Max Deflection 22.35 mm
Suggested Max Load 27.58 N
Total Coils 10.5
Wire Diameter 0.97 mm
The 12530CS compression spring is a meticulously engineered component designed for a wide range of industrial applications requiring reliable performance and durability. Crafted from premium 0.038" diameter music wire, the 12530 spring design exhibits reliable strength across its 10.5 active coils, withstanding repeated compression cycles with a maximum load of 6.2 lbf without succumbing to fatigue.

We manufacture the 12530 design to provide a compression spring that is 1.31" long at rest and provides a consistent rate of 7.1 lbs/in along its recommended maximum of 0.88" deflection. For best results, your application should fully accommodate the inner (0.33") and outer (0.406") diameters of this spring and be designed for its closed end configuration.

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