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Century Spring

3646CS - 2" Music Wire Compression Spring

Inventory Status
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Compression spring manufactured from music wire with 13 coils and closed ends. This spring features an O.D. of 0.406", and an I.D. of 0.336".

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Unit System
Specs (in standard)
Label Value
Brand Century Spring
Display Name 3646
Ends Closed
Finish Gold Iridite
Free Length 2 in
Inside Diameter 0.336 in
Material Music Wire
Outside Diameter 0.406 in
Part Type Standard
Rate 3.8 lbs/in
SKU 3646CS
Solid Length 0.49 in
Suggested Max Deflection 1.5 in
Suggested Max Load 5.7 lbf
Total Coils 13
Wire Diameter 0.035 in
Specs (in metric)
Label Value
Brand Century Spring
Display Name 3646
Ends Closed
Finish Gold Iridite
Free Length 50.8 mm
Inside Diameter 8.53 mm
Material Music Wire
Outside Diameter 10.31 mm
Part Type Standard
Rate 0.67 N/mm
SKU 3646CS
Solid Length 12.45 mm
Suggested Max Deflection 38.1 mm
Suggested Max Load 25.35 N
Total Coils 13
Wire Diameter 0.89 mm
The 3646CS compression spring is a meticulously engineered component designed for a wide range of industrial applications requiring reliable performance and durability. Crafted from premium 0.035" diameter music wire, the 3646 spring design exhibits reliable strength across its 13 active coils, withstanding repeated compression cycles with a maximum load of 5.7 lbf without succumbing to fatigue.

We manufacture the 3646 design to provide a compression spring that is 2" long at rest and provides a consistent rate of 3.8 lbs/in along its recommended maximum of 1.5" deflection. For best results, your application should fully accommodate the inner (0.336") and outer (0.406") diameters of this spring and be designed for its closed end configuration.

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