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Century Spring

1551CS - 7.75" Spring Steel Compression Spring

Inventory Status
Estimated Lead Time

Compression spring manufactured from spring steel with 24.7 coils and closed & ground ends. This spring features an O.D. of 1.203", and an I.D. of 0.909".

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Unit System
Specs (in standard)
Label Value
Brand Century Spring
Display Name 1551
Ends Closed & Ground
Finish Zinc
Free Length 7.75 in
Inside Diameter 0.909 in
Material Spring Steel
Outside Diameter 1.203 in
Part Type Standard
Rate 25 lbs/in
SKU 1551CS
Solid Length 3.63 in
Suggested Max Deflection 3.2 in
Suggested Max Load 80 lbf
Total Coils 24.7
Wire Diameter 0.147 in
Specs (in metric)
Label Value
Brand Century Spring
Display Name 1551
Ends Closed & Ground
Finish Zinc
Free Length 196.85 mm
Inside Diameter 23.09 mm
Material Spring Steel
Outside Diameter 30.56 mm
Part Type Standard
Rate 4.38 N/mm
SKU 1551CS
Solid Length 92.2 mm
Suggested Max Deflection 81.28 mm
Suggested Max Load 355.84 N
Total Coils 24.7
Wire Diameter 3.73 mm
The 1551CS compression spring is a meticulously engineered component designed for a wide range of industrial applications requiring reliable performance and durability. Crafted from premium 0.147" diameter spring steel, the 1551 spring design exhibits reliable strength across its 24.7 active coils, withstanding repeated compression cycles with a maximum load of 80 lbf without succumbing to fatigue.

We manufacture the 1551 design to provide a compression spring that is 7.75" long at rest and provides a consistent rate of 25 lbs/in along its recommended maximum of 3.2" deflection. For best results, your application should fully accommodate the inner (0.909") and outer (1.203") diameters of this spring and be designed for its closed & ground end configuration.

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