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4129CS - 6.75" Spring Steel Compression Spring

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Compression spring manufactured from spring steel with 12 coils and closed & ground ends. This spring features an O.D. of 2.468", and an I.D. of 2.054".

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Unit System
Specs (in standard)
Label Value
Brand Century Spring
Display Name 4129
Ends Closed & Ground
Finish Zinc
Free Length 6.75 in
Inside Diameter 2.054 in
Material Spring Steel
Outside Diameter 2.468 in
Part Type Standard
Rate 23 lbs/in
SKU 4129CS
Solid Length 2.48 in
Suggested Max Deflection 4.3 in
Suggested Max Load 97 lbf
Total Coils 12
Wire Diameter 0.207 in
Specs (in metric)
Label Value
Brand Century Spring
Display Name 4129
Ends Closed & Ground
Finish Zinc
Free Length 171.45 mm
Inside Diameter 52.17 mm
Material Spring Steel
Outside Diameter 62.69 mm
Part Type Standard
Rate 4.03 N/mm
SKU 4129CS
Solid Length 62.99 mm
Suggested Max Deflection 109.22 mm
Suggested Max Load 431.46 N
Total Coils 12
Wire Diameter 5.26 mm
The 4129CS compression spring is a meticulously engineered component designed for a wide range of industrial applications requiring reliable performance and durability. Crafted from premium 0.207" diameter spring steel, the 4129 spring design exhibits reliable strength across its 12 active coils, withstanding repeated compression cycles with a maximum load of 97 lbf without succumbing to fatigue.

We manufacture the 4129 design to provide a compression spring that is 6.75" long at rest and provides a consistent rate of 23 lbs/in along its recommended maximum of 4.3" deflection. For best results, your application should fully accommodate the inner (2.054") and outer (2.468") diameters of this spring and be designed for its closed & ground end configuration.

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