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Century Spring

3925CS - 4.5" Spring Steel Compression Spring

Inventory Status
Estimated Lead Time

Compression spring manufactured from spring steel with 13 coils and closed ends. This spring features an O.D. of 0.687", and an I.D. of 0.054".

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Unit System
Specs (in standard)
Label Value
Brand Century Spring
Display Name 3925
Ends Closed
Finish Zinc
Free Length 4.5 in
Inside Diameter 0.054 in
Material Spring Steel
Outside Diameter 0.687 in
Part Type Standard
Rate 4.7 lbs/in
SKU 3925CS
Solid Length 0.77 in
Suggested Max Deflection 1.9 in
Suggested Max Load 8.8 lbf
Total Coils 13
Wire Diameter 0.055 in
Specs (in metric)
Label Value
Brand Century Spring
Display Name 3925
Ends Closed
Finish Zinc
Free Length 114.3 mm
Inside Diameter 1.37 mm
Material Spring Steel
Outside Diameter 17.45 mm
Part Type Standard
Rate 0.82 N/mm
SKU 3925CS
Solid Length 19.56 mm
Suggested Max Deflection 48.26 mm
Suggested Max Load 39.14 N
Total Coils 13
Wire Diameter 1.4 mm
The 3925CS 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 spring steel, the 3925 spring design exhibits reliable strength across its 13 active coils, withstanding repeated compression cycles with a maximum load of 8.8 lbf without succumbing to fatigue.

We manufacture the 3925 design to provide a compression spring that is 4.5" long at rest and provides a consistent rate of 4.7 lbs/in along its recommended maximum of 1.9" deflection. For best results, your application should fully accommodate the inner (0.054") and outer (0.687") diameters of this spring and be designed for its closed end configuration.

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