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Century Spring

1863CS - 3.5" Spring Steel Compression Spring

Inventory Status
Estimated Lead Time

Compression spring manufactured from spring steel with 17.5 coils and closed ends. This spring features an O.D. of 0.75", and an I.D. of 0.554".

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Unit System
Specs (in standard)
Label Value
Brand Century Spring
Display Name 1863
Ends Closed
Finish Zinc
Free Length 3.5 in
Inside Diameter 0.554 in
Material Spring Steel
Outside Diameter 0.75 in
Part Type Standard
Rate 31 lbs/in
SKU 1863CS
Solid Length 1.81 in
Suggested Max Deflection 1.3 in
Suggested Max Load 40 lbf
Total Coils 17.5
Wire Diameter 0.098 in
Specs (in metric)
Label Value
Brand Century Spring
Display Name 1863
Ends Closed
Finish Zinc
Free Length 88.9 mm
Inside Diameter 14.07 mm
Material Spring Steel
Outside Diameter 19.05 mm
Part Type Standard
Rate 5.43 N/mm
SKU 1863CS
Solid Length 45.97 mm
Suggested Max Deflection 33.02 mm
Suggested Max Load 177.92 N
Total Coils 17.5
Wire Diameter 2.49 mm
The 1863CS compression spring is a meticulously engineered component designed for a wide range of industrial applications requiring reliable performance and durability. Crafted from premium 0.098" diameter spring steel, the 1863 spring design exhibits reliable strength across its 17.5 active coils, withstanding repeated compression cycles with a maximum load of 40 lbf without succumbing to fatigue.

We manufacture the 1863 design to provide a compression spring that is 3.5" long at rest and provides a consistent rate of 31 lbs/in along its recommended maximum of 1.3" deflection. For best results, your application should fully accommodate the inner (0.554") and outer (0.75") diameters of this spring and be designed for its closed end configuration.

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