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Century Spring

12604CS - 6.88" Music Wire Compression Spring

Inventory Status
Estimated Lead Time

Compression spring manufactured from music wire with 28.3 coils and closed ends. This spring features an O.D. of 0.89", and an I.D. of 0.578".

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Unit System
Specs (in standard)
Label Value
Brand Century Spring
Display Name 12604
Ends Closed
Finish None
Free Length 6.88 in
Inside Diameter 0.578 in
Material Music Wire
Outside Diameter 0.89 in
Part Type Standard
Rate 82 lbs/in
SKU 12604CS
Solid Length 4.56 in
Suggested Max Deflection 2.1 in
Suggested Max Load 171 lbf
Total Coils 28.3
Wire Diameter 0.156 in
Specs (in metric)
Label Value
Brand Century Spring
Display Name 12604
Ends Closed
Finish None
Free Length 174.75 mm
Inside Diameter 14.68 mm
Material Music Wire
Outside Diameter 22.61 mm
Part Type Standard
Rate 14.36 N/mm
SKU 12604CS
Solid Length 115.82 mm
Suggested Max Deflection 53.34 mm
Suggested Max Load 760.61 N
Total Coils 28.3
Wire Diameter 3.96 mm
The 12604CS compression spring is a meticulously engineered component designed for a wide range of industrial applications requiring reliable performance and durability. Crafted from premium 0.156" diameter music wire, the 12604 spring design exhibits reliable strength across its 28.3 active coils, withstanding repeated compression cycles with a maximum load of 171 lbf without succumbing to fatigue.

We manufacture the 12604 design to provide a compression spring that is 6.88" long at rest and provides a consistent rate of 82 lbs/in along its recommended maximum of 2.1" deflection. For best results, your application should fully accommodate the inner (0.578") and outer (0.89") diameters of this spring and be designed for its closed end configuration.

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