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Century Spring

75666CS - 5.512" Music Wire Compression Spring

Inventory Status
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Compression spring manufactured from music wire with 14.5 coils and closed & ground ends. This spring features an O.D. of 0.679", and an I.D. of 0.579".

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Unit System
Specs (in standard)
Label Value
Brand Century Spring
Display Name 75666
Ends Closed & Ground
Finish Zinc
Free Length 5.512 in
Inside Diameter 0.579 in
Material Music Wire
Outside Diameter 0.679 in
Part Type Metric
Rate 2.816 lbs/in
SKU 75666CS
Solid Length 0.714 in
Suggested Max Deflection 3.256 in
Suggested Max Load 9.169 lbf
Total Coils 14.5
Wire Diameter 0.049 in
Specs (in metric)
Label Value
Brand Century Spring
Display Name 75666
Ends Closed & Ground
Finish Zinc
Free Length 140 mm
Inside Diameter 14.71 mm
Material Music Wire
Outside Diameter 17.25 mm
Part Type Metric
Rate 0.49 N/mm
SKU 75666CS
Solid Length 18.14 mm
Suggested Max Deflection 82.7 mm
Suggested Max Load 40.78 N
Total Coils 14.5
Wire Diameter 1.24 mm
The 75666CS compression spring is a meticulously engineered component designed for a wide range of industrial applications requiring reliable performance and durability. Crafted from premium 0.049" diameter music wire, the 75666 spring design exhibits reliable strength across its 14.5 active coils, withstanding repeated compression cycles with a maximum load of 9.169 lbf without succumbing to fatigue.

We manufacture the 75666 design to provide a compression spring that is 5.512" long at rest and provides a consistent rate of 2.816 lbs/in along its recommended maximum of 3.256" deflection. For best results, your application should fully accommodate the inner (0.579") and outer (0.679") diameters of this spring and be designed for its closed & ground end configuration.

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