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Century Spring

3815CS - 1.75" Spring Steel Compression Spring

Inventory Status
Estimated Lead Time

Compression spring manufactured from spring steel with 7 coils and closed & ground ends. This spring features an O.D. of 0.921", and an I.D. of 0.661".

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Unit System
Specs (in standard)
Label Value
Brand Century Spring
Display Name 3815
Ends Closed & Ground
Finish Zinc
Free Length 1.75 in
Inside Diameter 0.661 in
Material Spring Steel
Outside Diameter 0.921 in
Part Type Standard
Rate 166 lbs/in
SKU 3815CS
Solid Length 0.91 in
Suggested Max Deflection 0.43 in
Suggested Max Load 72 lbf
Total Coils 7
Wire Diameter 0.13 in
Specs (in metric)
Label Value
Brand Century Spring
Display Name 3815
Ends Closed & Ground
Finish Zinc
Free Length 44.45 mm
Inside Diameter 16.79 mm
Material Spring Steel
Outside Diameter 23.39 mm
Part Type Standard
Rate 29.07 N/mm
SKU 3815CS
Solid Length 23.11 mm
Suggested Max Deflection 10.92 mm
Suggested Max Load 320.26 N
Total Coils 7
Wire Diameter 3.3 mm
The 3815 compression spring is engineered for optimal performance in demanding applications. Constructed from high-quality spring steel and designed with precision and durability in mind, this spring is an essential component for a variety of mechanical systems where reliable force and resilience are paramount.

The 3815CS compression spring is designed with a free length of 0.63" total of 7 coils, and a rate of 45 lbs/in providing a balanced combination of flexibility and strength. This spring coil, and its closed & ground end configuration allows for efficient energy storage and release, making it suitable for applications requiring precise motion control.

The 3815 spring design is ideal for use in industrial machinery, automotive systems, and various mechanical assemblies where reliable force application is crucial. Its robust construction and thoughtful design make it a dependable choice for engineers seeking a high-performance spring solution.

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