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Century Spring

N-70CS - 1.5" Spring Steel Compression Spring

Inventory Status
Estimated Lead Time

Compression spring manufactured from spring steel with 13.5 coils and closed & ground ends. This spring features an O.D. of 0.312", and an I.D. of 0.222".

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Unit System
Specs (in standard)
Label Value
Brand Century Spring
Display Name N-70
Ends Closed & Ground
Finish Gold Iridite
Free Length 1.5 in
Inside Diameter 0.222 in
Material Spring Steel
Outside Diameter 0.312 in
Part Type Standard
Rate 27 lbs/in
SKU N-70CS
Solid Length 0.61 in
Suggested Max Deflection 0.41 in
Suggested Max Load 11 lbf
Total Coils 13.5
Wire Diameter 0.045 in
Specs (in metric)
Label Value
Brand Century Spring
Display Name N-70
Ends Closed & Ground
Finish Gold Iridite
Free Length 38.1 mm
Inside Diameter 5.64 mm
Material Spring Steel
Outside Diameter 7.92 mm
Part Type Standard
Rate 4.73 N/mm
SKU N-70CS
Solid Length 15.49 mm
Suggested Max Deflection 10.41 mm
Suggested Max Load 48.93 N
Total Coils 13.5
Wire Diameter 1.14 mm
The N-70CS compression spring is a meticulously engineered component designed for a wide range of industrial applications requiring reliable performance and durability. Crafted from premium 0.045" diameter spring steel, the N-70 spring design exhibits reliable strength across its 13.5 active coils, withstanding repeated compression cycles with a maximum load of 11 lbf without succumbing to fatigue.

We manufacture the N-70 design to provide a compression spring that is 1.5" long at rest and provides a consistent rate of 27 lbs/in along its recommended maximum of 0.41" deflection. For best results, your application should fully accommodate the inner (0.222") and outer (0.312") diameters of this spring and be designed for its closed & ground end configuration.

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