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Century Spring

12658CS - 8" Music Wire Compression Spring

Inventory Status
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Compression spring manufactured from music wire with 17.8 coils and closed ends. This spring features an O.D. of 1.25", and an I.D. of 1.062".

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Unit System
Specs (in standard)
Label Value
Brand Century Spring
Display Name 12658
Ends Closed
Finish Zinc
Free Length 8 in
Inside Diameter 1.062 in
Material Music Wire
Outside Diameter 1.25 in
Part Type Standard
Rate 4.6 lbs/in
SKU 12658CS
Solid Length 1.76 in
Suggested Max Deflection 6.2 in
Suggested Max Load 29 lbf
Total Coils 17.8
Wire Diameter 0.094 in
Specs (in metric)
Label Value
Brand Century Spring
Display Name 12658
Ends Closed
Finish Zinc
Free Length 203.2 mm
Inside Diameter 26.97 mm
Material Music Wire
Outside Diameter 31.75 mm
Part Type Standard
Rate 0.81 N/mm
SKU 12658CS
Solid Length 44.7 mm
Suggested Max Deflection 157.48 mm
Suggested Max Load 128.99 N
Total Coils 17.8
Wire Diameter 2.39 mm
The 12658CS compression spring is a meticulously engineered component designed for a wide range of industrial applications requiring reliable performance and durability. Crafted from premium 0.094" diameter music wire, the 12658 spring design exhibits reliable strength across its 17.8 active coils, withstanding repeated compression cycles with a maximum load of 29 lbf without succumbing to fatigue.

We manufacture the 12658 design to provide a compression spring that is 8" long at rest and provides a consistent rate of 4.6 lbs/in along its recommended maximum of 6.2" deflection. For best results, your application should fully accommodate the inner (1.062") and outer (1.25") diameters of this spring and be designed for its closed end configuration.

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