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Century Spring

3331CS - 1.44" Spring Steel Compression Spring

Inventory Status
Estimated Lead Time

Compression spring manufactured from spring steel with 4 coils and closed & ground ends. This spring features an O.D. of 1.75", and an I.D. of 1.184".

NOTE: The spring rate value for compression springs with 4 coils or less is a reference value.

Download CAD
Unit System
Specs (in standard)
Label Value
Brand Century Spring
Display Name 3331
Ends Closed & Ground
Finish Zinc
Free Length 1.44 in
Inside Diameter 1.184 in
Material Spring Steel
Outside Diameter 1.75 in
Part Type Standard
Rate 1460 lbs/in
SKU 3331CS
Solid Length 1.13 in
Suggested Max Deflection 0.23 in
Suggested Max Load 333 lbf
Total Coils 4
Wire Diameter 0.283 in
Specs (in metric)
Label Value
Brand Century Spring
Display Name 3331
Ends Closed & Ground
Finish Zinc
Free Length 36.58 mm
Inside Diameter 30.07 mm
Material Spring Steel
Outside Diameter 44.45 mm
Part Type Standard
Rate 255.65 N/mm
SKU 3331CS
Solid Length 28.7 mm
Suggested Max Deflection 5.84 mm
Suggested Max Load 1481.18 N
Total Coils 4
Wire Diameter 7.19 mm
The 3331 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 3331CS compression spring is designed with a free length of 1" total of 3 coils, and a rate of 19 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 3331 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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