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Century Spring

4019 - 18.5 Inch Spring Steel Compression Spring

Inventory Status
Estimated Lead Time

Compression spring manufactured from Spring Steel with 73 coils and Closed ends. This spring features an O.D. of 0.656 Inch, and an I.D. of 0.522 Inch.

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Unit System
Specs (in standard)
Label Value
Brand Century Spring
Display Name 4019
Ends Closed
Finish Black Oxide
Free Length 18.5 in
Inside Diameter 0.522 in
Material Spring Steel
Outside Diameter 0.656 in
Part Type Standard
Rate 2 lbs/in
SKU 4019CS
Solid Length 4.96 in
Suggested Max Deflection 8.2 in
Suggested Max Load 16 lbf
Total Coils 73
Wire Diameter 0.067 in
Specs (in metric)
Label Value
Brand Century Spring
Display Name 4019
Ends Closed
Finish Black Oxide
Free Length 469.9 mm
Inside Diameter 13.26 mm
Material Spring Steel
Outside Diameter 16.66 mm
Part Type Standard
Rate 0.35 N/mm
SKU 4019CS
Solid Length 125.98 mm
Suggested Max Deflection 208.28 mm
Suggested Max Load 71.17 N
Total Coils 73
Wire Diameter 1.7 mm
The 4019CS compression spring is a meticulously engineered component designed for a wide range of industrial applications requiring reliable performance and durability. Crafted from premium 0.067" diameter hard drawn, the 4019 spring design exhibits reliable strength across its 73 active coils, withstanding repeated compression cycles with a maximum load of 16 lbf without succumbing to fatigue.

We manufacture the 4019 design to provide a compression spring that is 18.5" long at rest and provides a consistent rate of 2 lbs/in along its recommended maximum of 8.2" deflection. For best results, your application should fully accommodate the inner (0.522") and outer (0.656") diameters of this spring and be designed for its closed end configuration.

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