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Century Spring

72803CS - 3" Music Wire Compression Spring

Inventory Status
Estimated Lead Time

Compression spring manufactured from music wire with 7.63 coils and closed & ground ends. This spring features an O.D. of 1.46", and an I.D. of 1.19".

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Unit System
Specs (in standard)
Label Value
Brand Century Spring
Display Name 72803
Ends Closed & Ground
Finish None
Free Length 3 in
Inside Diameter 1.19 in
Material Music Wire
Outside Diameter 1.46 in
Part Type Standard
Rate 36 lbs/in
SKU 72803CS
Solid Length 1.03 in
Suggested Max Deflection 2 in
Suggested Max Load 71 lbf
Total Coils 7.63
Wire Diameter 0.135 in
Specs (in metric)
Label Value
Brand Century Spring
Display Name 72803
Ends Closed & Ground
Finish None
Free Length 76.2 mm
Inside Diameter 30.23 mm
Material Music Wire
Outside Diameter 37.08 mm
Part Type Standard
Rate 6.3 N/mm
SKU 72803CS
Solid Length 26.16 mm
Suggested Max Deflection 50.8 mm
Suggested Max Load 315.81 N
Total Coils 7.63
Wire Diameter 3.43 mm
The 72803 compression spring is engineered for optimal performance in demanding applications. Constructed from high-quality music wire 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 72803CS compression spring is designed with a free length of 2.5" total of 6.63 coils, and a rate of 38 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 72803 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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