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72920CS - 4" Music Wire Compression Spring

Inventory Status
Estimated Lead Time

Compression spring manufactured from music wire with 9.88 coils and closed & ground ends. This spring features an O.D. of 1.687", and an I.D. of 1.251".

Unit System
Specs (in standard)
Label Value
Brand Century Spring
Display Name 72920
Ends Closed & Ground
Finish None
Free Length 4 in
Inside Diameter 1.251 in
Material Music Wire
Outside Diameter 1.687 in
Part Type Standard
Rate 130 lbs/in
SKU 72920CS
Solid Length 2.15 in
Suggested Max Deflection 1.8 in
Suggested Max Load 240 lbf
Total Coils 9.88
Wire Diameter 0.218 in
Specs (in metric)
Label Value
Brand Century Spring
Display Name 72920
Ends Closed & Ground
Finish None
Free Length 101.6 mm
Inside Diameter 31.78 mm
Material Music Wire
Outside Diameter 42.85 mm
Part Type Standard
Rate 22.76 N/mm
SKU 72920CS
Solid Length 54.61 mm
Suggested Max Deflection 45.72 mm
Suggested Max Load 1067.52 N
Total Coils 9.88
Wire Diameter 5.54 mm
The compression spring 72920CS is an essential component designed for applications requiring reliable force and energy storage. Crafted from high-quality music wire, the 72920 compression spring design exhibits exceptional tensile strength and resilience.

The 72920 design is manufactured with a free length of 4", with an outer diameter of 1.687", an inner diameter of 1.251", and a total of 9.88 coils, expertly designed to deliver consistent compression characteristics including a rate of 130 lbs/in.

The 72920CS compression spring is ideally suited for use in a wide range of mechanical assemblies, including but not limited to automotive suspension systems, industrial machinery, and electronic devices.

In summary, the compression spring 72920 design stands out for its superior material properties, thoughtful design, and versatility in application. It is a prime choice for engineers committed to excellence and innovation in their projects.