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Century Spring

1851CS - 5" Spring Steel Compression Spring

Inventory Status
Estimated Lead Time

Compression spring manufactured from spring steel with 11.75 coils and closed & ground ends. This spring features an O.D. of 1.687", and an I.D. of 1.387".

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Unit System
Specs (in standard)
Label Value
Brand Century Spring
Display Name 1851
Ends Closed & Ground
Finish Zinc
Free Length 5 in
Inside Diameter 1.387 in
Material Spring Steel
Outside Diameter 1.687 in
Part Type Standard
Rate 20.62 lbs/in
SKU 1851CS
Solid Length 1.81 in
Suggested Max Deflection 3 in
Suggested Max Load 62 lbf
Total Coils 11.75
Wire Diameter 0.15 in
Specs (in metric)
Label Value
Brand Century Spring
Display Name 1851
Ends Closed & Ground
Finish Zinc
Free Length 127 mm
Inside Diameter 35.23 mm
Material Spring Steel
Outside Diameter 42.85 mm
Part Type Standard
Rate 3.61 N/mm
SKU 1851CS
Solid Length 45.97 mm
Suggested Max Deflection 76.2 mm
Suggested Max Load 275.78 N
Total Coils 11.75
Wire Diameter 3.81 mm
The 1851CS compression spring is a meticulously engineered component designed for a wide range of industrial applications requiring reliable performance and durability. Crafted from premium 0.15" diameter spring steel, the 1851 spring design exhibits reliable strength across its 11.75 active coils, withstanding repeated compression cycles with a maximum load of 62 lbf without succumbing to fatigue.

We manufacture the 1851 design to provide a compression spring that is 5" long at rest and provides a consistent rate of 20.62 lbs/in along its recommended maximum of 3" deflection. For best results, your application should fully accommodate the inner (1.387") and outer (1.687") diameters of this spring and be designed for its closed & ground end configuration.

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