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Century Spring

F-43 - 0.69 Inch Spring Steel Compression Spring

Inventory Status
Estimated Lead Time

Compression spring manufactured from Spring Steel with 7.5 coils and Closed ends. This spring features an O.D. of 0.296 Inch, and an I.D. of 0.202 Inch.

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Unit System
Specs (in standard)
Label Value
Brand Century Spring
Display Name F-43
Ends Closed
Finish Zinc
Free Length 0.69 in
Inside Diameter 0.202 in
Material Spring Steel
Outside Diameter 0.296 in
Part Type Standard
Rate 83 lbs/in
SKU F-43CS
Solid Length 0.4 in
Suggested Max Deflection 0.16 in
Suggested Max Load 13 lbf
Total Coils 7.5
Wire Diameter 0.047 in
Specs (in metric)
Label Value
Brand Century Spring
Display Name F-43
Ends Closed
Finish Zinc
Free Length 17.53 mm
Inside Diameter 5.13 mm
Material Spring Steel
Outside Diameter 7.52 mm
Part Type Standard
Rate 14.53 N/mm
SKU F-43CS
Solid Length 10.16 mm
Suggested Max Deflection 4.06 mm
Suggested Max Load 57.82 N
Total Coils 7.5
Wire Diameter 1.19 mm
The F-43CS compression spring is a meticulously engineered component designed for a wide range of industrial applications requiring reliable performance and durability. Crafted from premium 0.047" diameter hard drawn, the F-43 spring design exhibits reliable strength across its 7.5 active coils, withstanding repeated compression cycles with a maximum load of 13 lbf without succumbing to fatigue.

We manufacture the F-43 design to provide a compression spring that is 0.69" long at rest and provides a consistent rate of 83 lbs/in along its recommended maximum of 0.16" deflection. For best results, your application should fully accommodate the inner (0.202") and outer (0.296") diameters of this spring and be designed for its closed end configuration.

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