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Century Spring

75306CS - 1.575" Music Wire Compression Spring

Inventory Status
Estimated Lead Time

Compression spring manufactured from music wire with 11 coils and closed & ground ends. This spring features an O.D. of 0.295", and an I.D. of 0.251".

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Unit System
Specs (in standard)
Label Value
Brand Century Spring
Display Name 75306
Ends Closed & Ground
Finish Zinc
Free Length 1.575 in
Inside Diameter 0.251 in
Material Music Wire
Outside Diameter 0.295 in
Part Type Metric
Rate 1.81 lbs/in
SKU 75306CS
Solid Length 0.236 in
Suggested Max Deflection 1.186 in
Suggested Max Load 2.147 lbf
Total Coils 11
Wire Diameter 0.022 in
Specs (in metric)
Label Value
Brand Century Spring
Display Name 75306
Ends Closed & Ground
Finish Zinc
Free Length 40.01 mm
Inside Diameter 6.38 mm
Material Music Wire
Outside Diameter 7.49 mm
Part Type Metric
Rate 0.32 N/mm
SKU 75306CS
Solid Length 5.99 mm
Suggested Max Deflection 30.12 mm
Suggested Max Load 9.55 N
Total Coils 11
Wire Diameter 0.56 mm
The 75306CS compression spring is a meticulously engineered component designed for a wide range of industrial applications requiring reliable performance and durability. Crafted from premium 0.022" diameter music wire, the 75306 spring design exhibits reliable strength across its 11 active coils, withstanding repeated compression cycles with a maximum load of 2.147 lbf without succumbing to fatigue.

We manufacture the 75306 design to provide a compression spring that is 1.575" long at rest and provides a consistent rate of 1.81 lbs/in along its recommended maximum of 1.186" deflection. For best results, your application should fully accommodate the inner (0.251") and outer (0.295") diameters of this spring and be designed for its closed & ground end configuration.

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