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Century Spring

S-840CS - 2.44" 302/304 Stainless Steel Compression Spring

Inventory Status
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Compression spring manufactured from 302/304 stainless steel with 20.3 coils and closed & ground ends. This spring features an O.D. of 0.437", and an I.D. of 0.297".

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Unit System
Specs (in standard)
Label Value
Brand Century Spring
Display Name S-840
Ends Closed & Ground
Finish None
Free Length 2.44 in
Inside Diameter 0.297 in
Material 302/304 Stainless Steel
Outside Diameter 0.437 in
Part Type Standard
Rate 33 lbs/in
SKU S-840CS
Solid Length 1.42 in
Suggested Max Deflection 0.73 in
Suggested Max Load 24 lbf
Total Coils 20.3
Wire Diameter 0.07 in
Specs (in metric)
Label Value
Brand Century Spring
Display Name S-840
Ends Closed & Ground
Finish None
Free Length 61.98 mm
Inside Diameter 7.54 mm
Material 302/304 Stainless Steel
Outside Diameter 11.1 mm
Part Type Standard
Rate 5.78 N/mm
SKU S-840CS
Solid Length 36.07 mm
Suggested Max Deflection 18.54 mm
Suggested Max Load 106.75 N
Total Coils 20.3
Wire Diameter 1.78 mm
The S-840CS compression spring is a meticulously engineered component designed for a wide range of industrial applications requiring reliable performance and durability. Crafted from premium 0.07" diameter 302/304 stainless steel, the S-840 spring design exhibits reliable strength across its 20.3 active coils, withstanding repeated compression cycles with a maximum load of 24 lbf without succumbing to fatigue.

We manufacture the S-840 design to provide a compression spring that is 2.44" long at rest and provides a consistent rate of 33 lbs/in along its recommended maximum of 0.73" deflection. For best results, your application should fully accommodate the inner (0.297") and outer (0.437") diameters of this spring and be designed for its closed & ground end configuration.

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