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Century Spring

12421CS - 0.69" Music Wire Compression Spring

Inventory Status
Estimated Lead Time

Compression spring manufactured from music wire with 5 coils and closed ends. This spring features an O.D. of 0.375", and an I.D. of 0.321".

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Unit System
Specs (in standard)
Label Value
Brand Century Spring
Display Name 12421
Ends Closed
Finish None
Free Length 0.69 in
Inside Diameter 0.321 in
Material Music Wire
Outside Diameter 0.375 in
Part Type Standard
Rate 6 lbs/in
SKU 12421CS
Solid Length 0.16 in
Suggested Max Deflection 0.49 in
Suggested Max Load 3 lbf
Total Coils 5
Wire Diameter 0.027 in
Specs (in metric)
Label Value
Brand Century Spring
Display Name 12421
Ends Closed
Finish None
Free Length 17.53 mm
Inside Diameter 8.15 mm
Material Music Wire
Outside Diameter 9.53 mm
Part Type Standard
Rate 1.05 N/mm
SKU 12421CS
Solid Length 4.06 mm
Suggested Max Deflection 12.45 mm
Suggested Max Load 13.34 N
Total Coils 5
Wire Diameter 0.69 mm
The compression spring 12421CS is an essential component designed for applications requiring reliable force and energy storage. Crafted from high-quality music wire, the 12421 compression spring design exhibits exceptional tensile strength and resilience.

The 12421 design is manufactured with a free length of 0.69", with an outer diameter of 0.375", an inner diameter of 0.321", and a total of 5 coils, expertly designed to deliver consistent compression characteristics including a rate of 6 lbs/in.

The 12421CS 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 12421 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.

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