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73430CS - 8" Oil Tempered Compression Spring

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Compression spring manufactured from oil tempered with 8.48 coils and closed & ground ends. This spring features an O.D. of 3.906", and an I.D. of 3.12".

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Unit System
Specs (in standard)
Label Value
Brand Century Spring
Display Name 73430
Ends Closed & Ground
Finish None
Free Length 8 in
Inside Diameter 3.12 in
Material Oil Tempered
Outside Diameter 3.906 in
Part Type Standard
Rate 122 lbs/in
SKU 73430CS
Solid Length 3.33 in
Suggested Max Deflection 3.5 in
Suggested Max Load 433 lbf
Total Coils 8.48
Wire Diameter 0.393 in
Specs (in metric)
Label Value
Brand Century Spring
Display Name 73430
Ends Closed & Ground
Finish None
Free Length 203.2 mm
Inside Diameter 79.25 mm
Material Oil Tempered
Outside Diameter 99.21 mm
Part Type Standard
Rate 21.36 N/mm
SKU 73430CS
Solid Length 84.58 mm
Suggested Max Deflection 88.9 mm
Suggested Max Load 1925.98 N
Total Coils 8.48
Wire Diameter 9.98 mm
The 73430CS compression spring is a meticulously engineered component designed for a wide range of industrial applications requiring reliable performance and durability. Crafted from premium 0.393" diameter oil tempered, the 73430 spring design exhibits reliable strength across its 8.48 active coils, withstanding repeated compression cycles with a maximum load of 433 lbf without succumbing to fatigue.

We manufacture the 73430 design to provide a compression spring that is 8" long at rest and provides a consistent rate of 122 lbs/in along its recommended maximum of 3.5" deflection. For best results, your application should fully accommodate the inner (3.12") and outer (3.906") diameters of this spring and be designed for its closed & ground end configuration.

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