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Century Spring

3420CS - 4.44" Spring Steel Compression Spring

Inventory Status
Estimated Lead Time

Compression spring manufactured from spring steel with 10 coils and closed & ground ends. This spring features an O.D. of 1.937", and an I.D. of 1.371".

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Unit System
Specs (in standard)
Label Value
Brand Century Spring
Display Name 3420
Ends Closed & Ground
Finish Black Oxide
Free Length 4.44 in
Inside Diameter 1.371 in
Material Spring Steel
Outside Diameter 1.937 in
Part Type Standard
Rate 254 lbs/in
SKU 3420CS
Solid Length 2.83 in
Suggested Max Deflection 1.2 in
Suggested Max Load 304 lbf
Total Coils 10
Wire Diameter 0.283 in
Specs (in metric)
Label Value
Brand Century Spring
Display Name 3420
Ends Closed & Ground
Finish Black Oxide
Free Length 112.78 mm
Inside Diameter 34.82 mm
Material Spring Steel
Outside Diameter 49.2 mm
Part Type Standard
Rate 44.48 N/mm
SKU 3420CS
Solid Length 71.88 mm
Suggested Max Deflection 30.48 mm
Suggested Max Load 1352.19 N
Total Coils 10
Wire Diameter 7.19 mm
The 3420CS compression spring is a meticulously engineered component designed for a wide range of industrial applications requiring reliable performance and durability. Crafted from premium 0.283" diameter spring steel, the 3420 spring design exhibits reliable strength across its 10 active coils, withstanding repeated compression cycles with a maximum load of 304 lbf without succumbing to fatigue.

We manufacture the 3420 design to provide a compression spring that is 4.44" long at rest and provides a consistent rate of 254 lbs/in along its recommended maximum of 1.2" deflection. For best results, your application should fully accommodate the inner (1.371") and outer (1.937") diameters of this spring and be designed for its closed & ground end configuration.

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