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Century Spring

12543CS - 2.75" Oil Tempered Compression Spring

Inventory Status
Estimated Lead Time

Compression spring manufactured from oil tempered with 11.5 coils and closed ends. This spring features an O.D. of 0.812", and an I.D. of 0.562".

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Unit System
Specs (in standard)
Label Value
Brand Century Spring
Display Name 12543
Ends Closed
Finish None
Free Length 2.75 in
Inside Diameter 0.562 in
Material Oil Tempered
Outside Diameter 0.812 in
Part Type Standard
Rate 114 lbs/in
SKU 12543CS
Solid Length 1.56 in
Suggested Max Deflection 0.73 in
Suggested Max Load 83 lbf
Total Coils 11.5
Wire Diameter 0.125 in
Specs (in metric)
Label Value
Brand Century Spring
Display Name 12543
Ends Closed
Finish None
Free Length 69.85 mm
Inside Diameter 14.27 mm
Material Oil Tempered
Outside Diameter 20.62 mm
Part Type Standard
Rate 19.96 N/mm
SKU 12543CS
Solid Length 39.62 mm
Suggested Max Deflection 18.54 mm
Suggested Max Load 369.18 N
Total Coils 11.5
Wire Diameter 3.18 mm
The 12543CS compression spring is a meticulously engineered component designed for a wide range of industrial applications requiring reliable performance and durability. Crafted from premium 0.125" diameter oil tempered, the 12543 spring design exhibits reliable strength across its 11.5 active coils, withstanding repeated compression cycles with a maximum load of 83 lbf without succumbing to fatigue.

We manufacture the 12543 design to provide a compression spring that is 2.75" long at rest and provides a consistent rate of 114 lbs/in along its recommended maximum of 0.73" deflection. For best results, your application should fully accommodate the inner (0.562") and outer (0.812") diameters of this spring and be designed for its closed end configuration.

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