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Century Spring

3785CS - 0.75" Spring Steel Compression Spring

Inventory Status
Estimated Lead Time

Compression spring manufactured from spring steel with 7 coils and closed ends. This spring features an O.D. of 0.36", and an I.D. of 0.276".

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Unit System
Specs (in standard)
Label Value
Brand Century Spring
Display Name 3785
Ends Closed
Finish Zinc
Free Length 0.75 in
Inside Diameter 0.276 in
Material Spring Steel
Outside Diameter 0.36 in
Part Type Standard
Rate 28 lbs/in
SKU 3785CS
Solid Length 0.34 in
Suggested Max Deflection 0.28 in
Suggested Max Load 7.8 lbf
Total Coils 7
Wire Diameter 0.042 in
Specs (in metric)
Label Value
Brand Century Spring
Display Name 3785
Ends Closed
Finish Zinc
Free Length 19.05 mm
Inside Diameter 7.01 mm
Material Spring Steel
Outside Diameter 9.14 mm
Part Type Standard
Rate 4.9 N/mm
SKU 3785CS
Solid Length 8.64 mm
Suggested Max Deflection 7.11 mm
Suggested Max Load 34.69 N
Total Coils 7
Wire Diameter 1.07 mm
The 3785CS compression spring is a meticulously engineered component designed for a wide range of industrial applications requiring reliable performance and durability. Crafted from premium 0.042" diameter spring steel, the 3785 spring design exhibits reliable strength across its 7 active coils, withstanding repeated compression cycles with a maximum load of 7.8 lbf without succumbing to fatigue.

We manufacture the 3785 design to provide a compression spring that is 0.75" long at rest and provides a consistent rate of 28 lbs/in along its recommended maximum of 0.28" deflection. For best results, your application should fully accommodate the inner (0.276") and outer (0.36") diameters of this spring and be designed for its closed end configuration.

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