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Century Spring

3876CS - 3.69" Spring Steel Compression Spring

Inventory Status
Estimated Lead Time

Compression spring manufactured from spring steel with 17 coils and closed & ground ends. This spring features an O.D. of 0.734", and an I.D. of 0.584".

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Unit System
Specs (in standard)
Label Value
Brand Century Spring
Display Name 3876
Ends Closed & Ground
Finish Zinc
Free Length 3.69 in
Inside Diameter 0.584 in
Material Spring Steel
Outside Diameter 0.734 in
Part Type Standard
Rate 11 lbs/in
SKU 3876CS
Solid Length 1.28 in
Suggested Max Deflection 1.8 in
Suggested Max Load 20 lbf
Total Coils 17
Wire Diameter 0.075 in
Specs (in metric)
Label Value
Brand Century Spring
Display Name 3876
Ends Closed & Ground
Finish Zinc
Free Length 93.73 mm
Inside Diameter 14.83 mm
Material Spring Steel
Outside Diameter 18.64 mm
Part Type Standard
Rate 1.93 N/mm
SKU 3876CS
Solid Length 32.51 mm
Suggested Max Deflection 45.72 mm
Suggested Max Load 88.96 N
Total Coils 17
Wire Diameter 1.91 mm
The 3876CS compression spring is a meticulously engineered component designed for a wide range of industrial applications requiring reliable performance and durability. Crafted from premium 0.075" diameter spring steel, the 3876 spring design exhibits reliable strength across its 17 active coils, withstanding repeated compression cycles with a maximum load of 20 lbf without succumbing to fatigue.

We manufacture the 3876 design to provide a compression spring that is 3.69" long at rest and provides a consistent rate of 11 lbs/in along its recommended maximum of 1.8" deflection. For best results, your application should fully accommodate the inner (0.584") and outer (0.734") diameters of this spring and be designed for its closed & ground end configuration.

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