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Century Spring

A12-16CS - 1.25" Music Wire Compression Spring

Inventory Status
Estimated Lead Time

Compression spring manufactured from music wire with 11 coils and closed ends. This spring features an O.D. of 0.406", and an I.D. of 0.33".

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Unit System
Specs (in standard)
Label Value
Brand Century Spring
Display Name A12-16
Ends Closed
Finish None
Free Length 1.25 in
Inside Diameter 0.33 in
Material Music Wire
Outside Diameter 0.406 in
Part Type Standard
Rate 6.7 lbs/in
SKU A12-16CS
Solid Length 0.46 in
Suggested Max Deflection 0.79 in
Suggested Max Load 5.3 lbf
Total Coils 11
Wire Diameter 0.038 in
Specs (in metric)
Label Value
Brand Century Spring
Display Name A12-16
Ends Closed
Finish None
Free Length 31.75 mm
Inside Diameter 8.38 mm
Material Music Wire
Outside Diameter 10.31 mm
Part Type Standard
Rate 1.17 N/mm
SKU A12-16CS
Solid Length 11.68 mm
Suggested Max Deflection 20.07 mm
Suggested Max Load 23.57 N
Total Coils 11
Wire Diameter 0.97 mm
The A12-16CS compression spring is a meticulously engineered component designed for a wide range of industrial applications requiring reliable performance and durability. Crafted from premium 0.038" diameter music wire, the A12-16 spring design exhibits reliable strength across its 11 active coils, withstanding repeated compression cycles with a maximum load of 5.3 lbf without succumbing to fatigue.

We manufacture the A12-16 design to provide a compression spring that is 1.25" long at rest and provides a consistent rate of 6.7 lbs/in along its recommended maximum of 0.79" deflection. For best results, your application should fully accommodate the inner (0.33") and outer (0.406") diameters of this spring and be designed for its closed end configuration.

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