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Century Spring

813 - 12 Inch Spring Steel Compression Spring

Inventory Status
Estimated Lead Time

Compression spring manufactured from Spring Steel with 21 coils and Closed & Ground ends. This spring features an O.D. of 2 Inch, and an I.D. of 1.646 Inch.

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Unit System
Specs (in standard)
Label Value
Brand Century Spring
Display Name 813
Ends Closed & Ground
Finish Zinc
Free Length 12 in
Inside Diameter 1.646 in
Material Spring Steel
Outside Diameter 2 in
Part Type Standard
Rate 12 lbs/in
SKU 813CS
Solid Length 3.72 in
Suggested Max Deflection 6.8 in
Suggested Max Load 84 lbf
Total Coils 21
Wire Diameter 0.177 in
Specs (in metric)
Label Value
Brand Century Spring
Display Name 813
Ends Closed & Ground
Finish Zinc
Free Length 304.8 mm
Inside Diameter 41.81 mm
Material Spring Steel
Outside Diameter 50.8 mm
Part Type Standard
Rate 2.1 N/mm
SKU 813CS
Solid Length 94.49 mm
Suggested Max Deflection 172.72 mm
Suggested Max Load 373.63 N
Total Coils 21
Wire Diameter 4.5 mm
The 813CS compression spring is a meticulously engineered component designed for a wide range of industrial applications requiring reliable performance and durability. Crafted from premium 0.177" diameter hard drawn, the 813 spring design exhibits reliable strength across its 21 active coils, withstanding repeated compression cycles with a maximum load of 84 lbf without succumbing to fatigue.

We manufacture the 813 design to provide a compression spring that is 12" long at rest and provides a consistent rate of 12 lbs/in along its recommended maximum of 6.8" deflection. For best results, your application should fully accommodate the inner (1.646") and outer (2") diameters of this spring and be designed for its closed & ground end configuration.

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