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Century Spring

75249CS - 0.276" Music Wire Compression Spring

Inventory Status
Estimated Lead Time

Compression spring manufactured from music wire with 5.5 coils and closed & ground ends. This spring features an O.D. of 0.177", and an I.D. of 0.137".

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Unit System
Specs (in standard)
Label Value
Brand Century Spring
Display Name 75249
Ends Closed & Ground
Finish Zinc
Free Length 0.276 in
Inside Diameter 0.137 in
Material Music Wire
Outside Diameter 0.177 in
Part Type Metric
Rate 16.183 lbs/in
SKU 75249CS
Solid Length 0.108 in
Suggested Max Deflection 0.156 in
Suggested Max Load 2.525 lbf
Total Coils 5.5
Wire Diameter 0.02 in
Specs (in metric)
Label Value
Brand Century Spring
Display Name 75249
Ends Closed & Ground
Finish Zinc
Free Length 7.01 mm
Inside Diameter 3.48 mm
Material Music Wire
Outside Diameter 4.5 mm
Part Type Metric
Rate 2.83 N/mm
SKU 75249CS
Solid Length 2.74 mm
Suggested Max Deflection 3.96 mm
Suggested Max Load 11.23 N
Total Coils 5.5
Wire Diameter 0.51 mm
The 75249CS compression spring is a meticulously engineered component designed for a wide range of industrial applications requiring reliable performance and durability. Crafted from premium 0.02" diameter music wire, the 75249 spring design exhibits reliable strength across its 5.5 active coils, withstanding repeated compression cycles with a maximum load of 2.525 lbf without succumbing to fatigue.

We manufacture the 75249 design to provide a compression spring that is 0.276" long at rest and provides a consistent rate of 16.183 lbs/in along its recommended maximum of 0.156" deflection. For best results, your application should fully accommodate the inner (0.137") and outer (0.177") diameters of this spring and be designed for its closed & ground end configuration.

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