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Century Spring

75699CS - 0.61" Music Wire Compression Spring

Inventory Status
Estimated Lead Time

Compression spring manufactured from music wire with 3.5 coils and closed & ground ends. This spring features an O.D. of 0.72", and an I.D. of 0.61".

NOTE: The spring rate value for compression springs with 4 coils or less is a reference value.

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Unit System
Specs (in standard)
Label Value
Brand Century Spring
Display Name 75699
Ends Closed & Ground
Finish Zinc
Free Length 0.61 in
Inside Diameter 0.61 in
Material Music Wire
Outside Diameter 0.72 in
Part Type Metric
Rate 31.2 lbs/in
SKU 75699CS
Solid Length 0.193 in
Suggested Max Deflection 0.383 in
Suggested Max Load 11.95 lbf
Total Coils 3.5
Wire Diameter 0.055 in
Specs (in metric)
Label Value
Brand Century Spring
Display Name 75699
Ends Closed & Ground
Finish Zinc
Free Length 15.49 mm
Inside Diameter 15.49 mm
Material Music Wire
Outside Diameter 18.29 mm
Part Type Metric
Rate 5.46 N/mm
SKU 75699CS
Solid Length 4.9 mm
Suggested Max Deflection 9.73 mm
Suggested Max Load 53.15 N
Total Coils 3.5
Wire Diameter 1.4 mm
The 75699CS compression spring is a meticulously engineered component designed for a wide range of industrial applications requiring reliable performance and durability. Crafted from premium 0.055" diameter music wire, the 75699 spring design exhibits reliable strength across its 3.5 active coils, withstanding repeated compression cycles with a maximum load of 11.95 lbf without succumbing to fatigue.

We manufacture the 75699 design to provide a compression spring that is 0.61" long at rest and provides a consistent rate of 31.2 lbs/in along its recommended maximum of 0.383" deflection. For best results, your application should fully accommodate the inner (0.61") and outer (0.72") diameters of this spring and be designed for its closed & ground end configuration.

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