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Century Spring

75990CS - 1.378" Music Wire Compression Spring

Inventory Status
Estimated Lead Time

Compression spring manufactured from music wire with 18 coils and closed & ground ends. This spring features an O.D. of 0.283", and an I.D. of 0.205".

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Unit System
Specs (in standard)
Label Value
Brand Century Spring
Display Name 75990
Ends Closed & Ground
Finish None
Free Length 1.378 in
Inside Diameter 0.205 in
Material Music Wire
Outside Diameter 0.283 in
Part Type Metric
Rate 14.842 lbs/in
SKU 75990CS
Solid Length 0.709 in
Suggested Max Deflection 0.761 in
Suggested Max Load 11.301 lbf
Total Coils 18
Wire Diameter 0.039 in
Specs (in metric)
Label Value
Brand Century Spring
Display Name 75990
Ends Closed & Ground
Finish None
Free Length 35 mm
Inside Diameter 5.21 mm
Material Music Wire
Outside Diameter 7.19 mm
Part Type Metric
Rate 2.6 N/mm
SKU 75990CS
Solid Length 18.01 mm
Suggested Max Deflection 19.33 mm
Suggested Max Load 50.27 N
Total Coils 18
Wire Diameter 0.99 mm
The 75990CS compression spring is a meticulously engineered component designed for a wide range of industrial applications requiring reliable performance and durability. Crafted from premium 0.039" diameter music wire, the 75990 spring design exhibits reliable strength across its 18 active coils, withstanding repeated compression cycles with a maximum load of 11.301 lbf without succumbing to fatigue.

We manufacture the 75990 design to provide a compression spring that is 1.378" long at rest and provides a consistent rate of 14.842 lbs/in along its recommended maximum of 0.761" deflection. For best results, your application should fully accommodate the inner (0.205") and outer (0.283") diameters of this spring and be designed for its closed & ground end configuration.

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