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Century Spring

71215CS - 3" Music Wire Compression Spring

Inventory Status
Estimated Lead Time

Compression spring manufactured from music wire with 23.5 coils and closed & ground ends. This spring features an O.D. of 0.36", and an I.D. of 0.26".

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Unit System
Specs (in standard)
Label Value
Brand Century Spring
Display Name 71215
Ends Closed & Ground
Finish None
Free Length 3 in
Inside Diameter 0.26 in
Material Music Wire
Outside Diameter 0.36 in
Part Type Standard
Rate 13 lbs/in
SKU 71215CS
Solid Length 1.15 in
Suggested Max Deflection 1.3 in
Suggested Max Load 17 lbf
Total Coils 23.5
Wire Diameter 0.05 in
Specs (in metric)
Label Value
Brand Century Spring
Display Name 71215
Ends Closed & Ground
Finish None
Free Length 76.2 mm
Inside Diameter 6.6 mm
Material Music Wire
Outside Diameter 9.14 mm
Part Type Standard
Rate 2.28 N/mm
SKU 71215CS
Solid Length 29.21 mm
Suggested Max Deflection 33.02 mm
Suggested Max Load 75.62 N
Total Coils 23.5
Wire Diameter 1.27 mm
The 71215CS compression spring is a meticulously engineered component designed for a wide range of industrial applications requiring reliable performance and durability. Crafted from premium 0.05" diameter music wire, the 71215 spring design exhibits reliable strength across its 23.5 active coils, withstanding repeated compression cycles with a maximum load of 17 lbf without succumbing to fatigue.

We manufacture the 71215 design to provide a compression spring that is 3" long at rest and provides a consistent rate of 13 lbs/in along its recommended maximum of 1.3" deflection. For best results, your application should fully accommodate the inner (0.26") and outer (0.36") diameters of this spring and be designed for its closed & ground end configuration.

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