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Century Spring

A-77 - 0.41 Inch Spring Steel Compression Spring

Inventory Status
Estimated Lead Time

Compression spring manufactured from Spring Steel with 4.5 coils and Closed & Ground ends. This spring features an O.D. of 0.484 Inch, and an I.D. of 0.374 Inch.

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Unit System
Specs (in standard)
Label Value
Brand Century Spring
Display Name A-77
Ends Closed & Ground
Finish None
Free Length 0.41 in
Inside Diameter 0.374 in
Material Spring Steel
Outside Diameter 0.484 in
Part Type Standard
Rate 67 lbs/in
SKU A-77CS
Solid Length 0.25 in
Suggested Max Deflection 0.16 in
Suggested Max Load 11 lbf
Total Coils 4.5
Wire Diameter 0.055 in
Specs (in metric)
Label Value
Brand Century Spring
Display Name A-77
Ends Closed & Ground
Finish None
Free Length 10.41 mm
Inside Diameter 9.5 mm
Material Spring Steel
Outside Diameter 12.29 mm
Part Type Standard
Rate 11.73 N/mm
SKU A-77CS
Solid Length 6.35 mm
Suggested Max Deflection 4.06 mm
Suggested Max Load 48.93 N
Total Coils 4.5
Wire Diameter 1.4 mm
The A-77 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 A-77CS compression spring is designed with a free length of 2" total of 19 coils, and a rate of 7.8 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 A-77 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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