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843 - 12 Inch Spring Steel Compression Spring

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Compression spring manufactured from Spring Steel with 29.5 coils and Closed & Ground ends. This spring features an O.D. of 1.625 Inch, and an I.D. of 1.241 Inch.

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Unit System
Specs (in standard)
Label Value
Brand Century Spring
Display Name 843
Ends Closed & Ground
Finish Zinc
Free Length 12 in
Inside Diameter 1.241 in
Material Spring Steel
Outside Diameter 1.625 in
Part Type Standard
Rate 24 lbs/in
SKU 843CS
Solid Length 5.66 in
Suggested Max Deflection 5.1 in
Suggested Max Load 124 lbf
Total Coils 29.5
Wire Diameter 0.192 in
Specs (in metric)
Label Value
Brand Century Spring
Display Name 843
Ends Closed & Ground
Finish Zinc
Free Length 304.8 mm
Inside Diameter 31.52 mm
Material Spring Steel
Outside Diameter 41.28 mm
Part Type Standard
Rate 4.2 N/mm
SKU 843CS
Solid Length 143.76 mm
Suggested Max Deflection 129.54 mm
Suggested Max Load 551.55 N
Total Coils 29.5
Wire Diameter 4.88 mm
The 843CS compression spring is a meticulously engineered component designed for a wide range of industrial applications requiring reliable performance and durability. Crafted from premium 0.192" diameter hard drawn, the 843 spring design exhibits reliable strength across its 29.5 active coils, withstanding repeated compression cycles with a maximum load of 124 lbf without succumbing to fatigue.

We manufacture the 843 design to provide a compression spring that is 12" long at rest and provides a consistent rate of 24 lbs/in along its recommended maximum of 5.1" deflection. For best results, your application should fully accommodate the inner (1.241") and outer (1.625") diameters of this spring and be designed for its closed & ground end configuration.

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