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3103CS - 7.5" Spring Steel Compression Spring

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Compression spring manufactured from spring steel with 62 coils and closed ends. This spring features an O.D. of 0.375", and an I.D. of 0.25".

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Unit System
Specs (in standard)
Label Value
Brand Century Spring
Display Name 3103
Ends Closed
Finish Zinc
Free Length 7.5 in
Inside Diameter 0.25 in
Material Spring Steel
Outside Diameter 0.375 in
Part Type Standard
Rate 12 lbs/in
SKU 3103CS
Solid Length 3.91 in
Suggested Max Deflection 1.9 in
Suggested Max Load 22 lbf
Total Coils 62
Wire Diameter 0.0625 in
Specs (in metric)
Label Value
Brand Century Spring
Display Name 3103
Ends Closed
Finish Zinc
Free Length 190.5 mm
Inside Diameter 6.35 mm
Material Spring Steel
Outside Diameter 9.53 mm
Part Type Standard
Rate 2.1 N/mm
SKU 3103CS
Solid Length 99.31 mm
Suggested Max Deflection 48.26 mm
Suggested Max Load 97.86 N
Total Coils 62
Wire Diameter 1.59 mm
The 3103CS compression spring is a meticulously engineered component designed for a wide range of industrial applications requiring reliable performance and durability. Crafted from premium 0.0625" diameter spring steel, the 3103 spring design exhibits reliable strength across its 62 active coils, withstanding repeated compression cycles with a maximum load of 22 lbf without succumbing to fatigue.

We manufacture the 3103 design to provide a compression spring that is 7.5" long at rest and provides a consistent rate of 12 lbs/in along its recommended maximum of 1.9" deflection. For best results, your application should fully accommodate the inner (0.25") and outer (0.375") diameters of this spring and be designed for its closed end configuration.

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