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851 - 12 Inch Spring Steel Compression Spring

Inventory Status
Estimated Lead Time

Compression spring manufactured from Spring Steel with 27 coils and Closed ends. This spring features an O.D. of 1.5 Inch, and an I.D. of 1.176 Inch.

Unit System
Specs (in standard)
Label Value
Brand Century Spring
Display Name 851
Ends Closed
Finish Zinc
Free Length 12 in
Inside Diameter 1.176 in
Material Spring Steel
Outside Diameter 1.5 in
Part Type Standard
Rate 17 lbs/in
SKU 851CS
Solid Length 4.54 in
Suggested Max Deflection 5.1 in
Suggested Max Load 85 lbf
Total Coils 27
Wire Diameter 0.162 in
Specs (in metric)
Label Value
Brand Century Spring
Display Name 851
Ends Closed
Finish Zinc
Free Length 304.8 mm
Inside Diameter 29.87 mm
Material Spring Steel
Outside Diameter 38.1 mm
Part Type Standard
Rate 2.98 N/mm
SKU 851CS
Solid Length 115.32 mm
Suggested Max Deflection 129.54 mm
Suggested Max Load 378.08 N
Total Coils 27
Wire Diameter 4.11 mm
The 851 compression spring is engineered for optimal performance in demanding applications. Constructed from high-quality hard drawn 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 851CS compression spring is designed with a free length of 10" total of 28.7 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 851 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.