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Century Spring

4150 - 3 Inch Spring Steel Compression Spring

Inventory Status
Estimated Lead Time

Compression spring manufactured from Spring Steel with 15 coils and Closed ends. This spring features an O.D. of 0.437 Inch, and an I.D. of 0.343 Inch.

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Unit System
Specs (in standard)
Label Value
Brand Century Spring
Display Name 4150
Ends Closed
Finish Zinc
Free Length 3 in
Inside Diameter 0.343 in
Material Spring Steel
Outside Diameter 0.437 in
Part Type Standard
Rate 9 lbs/in
SKU 4150CS
Solid Length 0.75 in
Suggested Max Deflection 1 in
Suggested Max Load 9.1 lbf
Total Coils 15
Wire Diameter 0.047 in
Specs (in metric)
Label Value
Brand Century Spring
Display Name 4150
Ends Closed
Finish Zinc
Free Length 76.2 mm
Inside Diameter 8.71 mm
Material Spring Steel
Outside Diameter 11.1 mm
Part Type Standard
Rate 1.58 N/mm
SKU 4150CS
Solid Length 19.05 mm
Suggested Max Deflection 25.4 mm
Suggested Max Load 40.48 N
Total Coils 15
Wire Diameter 1.19 mm
The 4150CS 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 4150 spring design exhibits reliable strength across its 15 active coils, withstanding repeated compression cycles with a maximum load of 9.1 lbf without succumbing to fatigue.

We manufacture the 4150 design to provide a compression spring that is 3" long at rest and provides a consistent rate of 9 lbs/in along its recommended maximum of 1" deflection. For best results, your application should fully accommodate the inner (0.343") and outer (0.437") diameters of this spring and be designed for its closed end configuration.

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