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Century Spring

Z-78CS - 0.38" Spring Steel Compression Spring

Inventory Status
Estimated Lead Time

Compression spring manufactured from spring steel with 4 coils and closed & ground ends. This spring features an O.D. of 0.312", and an I.D. of 0.242".

NOTE: The spring rate value for compression springs with 4 coils or less is a reference value.

Download CAD
Unit System
Specs (in standard)
Label Value
Brand Century Spring
Display Name Z-78
Ends Closed & Ground
Finish None
Free Length 0.38 in
Inside Diameter 0.242 in
Material Spring Steel
Outside Diameter 0.312 in
Part Type Standard
Rate 51 lbs/in
SKU Z-78CS
Solid Length 0.14 in
Suggested Max Deflection 0.1 in
Suggested Max Load 5.2 lbf
Total Coils 4
Wire Diameter 0.035 in
Specs (in metric)
Label Value
Brand Century Spring
Display Name Z-78
Ends Closed & Ground
Finish None
Free Length 9.65 mm
Inside Diameter 6.15 mm
Material Spring Steel
Outside Diameter 7.92 mm
Part Type Standard
Rate 8.93 N/mm
SKU Z-78CS
Solid Length 3.56 mm
Suggested Max Deflection 2.54 mm
Suggested Max Load 23.13 N
Total Coils 4
Wire Diameter 0.89 mm
The compression spring Z-78CS is an essential component designed for applications requiring reliable force and energy storage. Crafted from high-quality spring steel, the Z-78 compression spring design exhibits exceptional tensile strength and resilience.

The Z-78 design is manufactured with a free length of 0.38", with an outer diameter of 0.312", an inner diameter of 0.242", and a total of 4 coils, expertly designed to deliver consistent compression characteristics including a rate of 51 lbs/in.

The Z-78CS 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 Z-78 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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