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M-21CS - 0.63" Music Wire Compression Spring

Inventory Status
Estimated Lead Time

Compression spring manufactured from music wire with 9 coils and closed ends. This spring features an O.D. of 0.219", and an I.D. of 0.179".

Unit System
Specs (in standard)
Label Value
Brand Century Spring
Display Name M-21
Ends Closed
Finish Zinc
Free Length 0.63 in
Inside Diameter 0.179 in
Material Music Wire
Outside Diameter 0.219 in
Part Type Standard
Rate 4.2 lbs/in
SKU M-21CS
Solid Length 0.2 in
Suggested Max Deflection 0.43 in
Suggested Max Load 1.8 lbf
Total Coils 9
Wire Diameter 0.02 in
Specs (in metric)
Label Value
Brand Century Spring
Display Name M-21
Ends Closed
Finish Zinc
Free Length 16 mm
Inside Diameter 4.55 mm
Material Music Wire
Outside Diameter 5.56 mm
Part Type Standard
Rate 0.74 N/mm
SKU M-21CS
Solid Length 5.08 mm
Suggested Max Deflection 10.92 mm
Suggested Max Load 8.01 N
Total Coils 9
Wire Diameter 0.51 mm
The compression spring M-21CS is an essential component designed for applications requiring reliable force and energy storage. Crafted from high-quality music wire, the M-21 compression spring design exhibits exceptional tensile strength and resilience.

The M-21 design is manufactured with a free length of 0.63", with an outer diameter of 0.219", an inner diameter of 0.179", and a total of 9 coils, expertly designed to deliver consistent compression characteristics including a rate of 4.2 lbs/in.

The M-21CS 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 M-21 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.