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11665CS - 4" Spring Steel Compression Spring

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Compression spring manufactured from spring steel with 13 coils and closed & ground ends. This spring features an O.D. of 1.281", and an I.D. of 0.965".

Unit System
Specs (in standard)
Label Value
Brand Century Spring
Display Name 11665
Ends Closed & Ground
Finish Zinc
Free Length 4 in
Inside Diameter 0.965 in
Material Spring Steel
Outside Diameter 1.281 in
Part Type Standard
Rate 58 lbs/in
SKU 11665CS
Solid Length 2.05 in
Suggested Max Deflection 1.6 in
Suggested Max Load 91 lbf
Total Coils 13
Wire Diameter 0.158 in
Specs (in metric)
Label Value
Brand Century Spring
Display Name 11665
Ends Closed & Ground
Finish Zinc
Free Length 101.6 mm
Inside Diameter 24.51 mm
Material Spring Steel
Outside Diameter 32.54 mm
Part Type Standard
Rate 10.16 N/mm
SKU 11665CS
Solid Length 52.07 mm
Suggested Max Deflection 40.64 mm
Suggested Max Load 404.77 N
Total Coils 13
Wire Diameter 4.01 mm
The 11665 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 11665CS compression spring is designed with a free length of 3.5" total of 17 coils, and a rate of 21 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 11665 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.