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Century Spring

3704CS - 3" Spring Steel Compression Spring

Inventory Status
Estimated Lead Time

Compression spring manufactured from spring steel with 6 coils and closed & ground ends. This spring features an O.D. of 1.437", and an I.D. of 1.327".

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Unit System
Specs (in standard)
Label Value
Brand Century Spring
Display Name 3704
Ends Closed & Ground
Finish Zinc
Free Length 3 in
Inside Diameter 1.327 in
Material Spring Steel
Outside Diameter 1.437 in
Part Type Standard
Rate 1.2 lbs/in
SKU 3704CS
Solid Length 0.33 in
Suggested Max Deflection 2.7 in
Suggested Max Load 3.3 lbf
Total Coils 6
Wire Diameter 0.055 in
Specs (in metric)
Label Value
Brand Century Spring
Display Name 3704
Ends Closed & Ground
Finish Zinc
Free Length 76.2 mm
Inside Diameter 33.71 mm
Material Spring Steel
Outside Diameter 36.5 mm
Part Type Standard
Rate 0.21 N/mm
SKU 3704CS
Solid Length 8.38 mm
Suggested Max Deflection 68.58 mm
Suggested Max Load 14.68 N
Total Coils 6
Wire Diameter 1.4 mm
The 3704CS 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 3704 spring design exhibits reliable strength across its 6 active coils, withstanding repeated compression cycles with a maximum load of 3.3 lbf without succumbing to fatigue.

We manufacture the 3704 design to provide a compression spring that is 3" long at rest and provides a consistent rate of 1.2 lbs/in along its recommended maximum of 2.7" deflection. For best results, your application should fully accommodate the inner (1.327") and outer (1.437") diameters of this spring and be designed for its closed & ground end configuration.

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