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A9-39CS - 0.78" Phosphor Bronze Compression Spring

Inventory Status
Estimated Lead Time

Compression spring manufactured from phosphor bronze with 8 coils and closed & ground ends. This spring features an O.D. of 0.304", and an I.D. of 0.19".

Unit System
Specs (in standard)
Label Value
Brand Century Spring
Display Name A9-39
Ends Closed & Ground
Finish None
Free Length 0.78 in
Inside Diameter 0.19 in
Material Phosphor Bronze
Outside Diameter 0.304 in
Part Type Standard
Rate 93 lbs/in
SKU A9-39CS
Solid Length 0.46 in
Suggested Max Deflection 0.22 in
Suggested Max Load 21 lbf
Total Coils 8
Wire Diameter 0.057 in
Specs (in metric)
Label Value
Brand Century Spring
Display Name A9-39
Ends Closed & Ground
Finish None
Free Length 19.81 mm
Inside Diameter 4.83 mm
Material Phosphor Bronze
Outside Diameter 7.72 mm
Part Type Standard
Rate 16.28 N/mm
SKU A9-39CS
Solid Length 11.68 mm
Suggested Max Deflection 5.59 mm
Suggested Max Load 93.41 N
Total Coils 8
Wire Diameter 1.45 mm
The A9-39 compression spring is engineered for optimal performance in demanding applications. Constructed from high-quality phosphor bronze 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 A9-39CS compression spring is designed with a free length of 0.81" total of 4 coils, and a rate of 6.4 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 A9-39 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.