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Century Spring

4099-FCS - 10" Spring Steel Compression Spring

Inventory Status
Estimated Lead Time

Compression spring manufactured from spring steel with 7.75 coils and closed & ground ends. This spring features an O.D. of 4.156", and an I.D. of 3.344".

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Unit System
Specs (in standard)
Label Value
Brand Century Spring
Display Name 4099-F
Ends Closed & Ground
Finish None
Free Length 10 in
Inside Diameter 3.344 in
Material Spring Steel
Outside Diameter 4.156 in
Part Type Standard
Rate 129 lbs/in
SKU 4099-FCS
Solid Length 3.15 in
Suggested Max Deflection 3.1 in
Suggested Max Load 400 lbf
Total Coils 7.75
Wire Diameter 0.406 in
Specs (in metric)
Label Value
Brand Century Spring
Display Name 4099-F
Ends Closed & Ground
Finish None
Free Length 254 mm
Inside Diameter 84.94 mm
Material Spring Steel
Outside Diameter 105.56 mm
Part Type Standard
Rate 22.59 N/mm
SKU 4099-FCS
Solid Length 80.01 mm
Suggested Max Deflection 78.74 mm
Suggested Max Load 1779.2 N
Total Coils 7.75
Wire Diameter 10.31 mm
The 4099-FCS compression spring is a meticulously engineered component designed for a wide range of industrial applications requiring reliable performance and durability. Crafted from premium 0.406" diameter spring steel, the 4099-F spring design exhibits reliable strength across its 7.75 active coils, withstanding repeated compression cycles with a maximum load of 400 lbf without succumbing to fatigue.

We manufacture the 4099-F design to provide a compression spring that is 10" long at rest and provides a consistent rate of 129 lbs/in along its recommended maximum of 3.1" deflection. For best results, your application should fully accommodate the inner (3.344") and outer (4.156") diameters of this spring and be designed for its closed & ground end configuration.

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