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Z-78 - 0.38 Inch, 51 Inch Pounds Spring Steel Compression Spring

Inventory Status
In-stock
Estimated Lead Time
In-stock parts: usually ships in 12-24 hours

Regular compression spring in Spring Steel with 4 total coils and Closed & Ground ends. This spring features an O.D. of 0.312 Inch, an I.D. of 0.242 Inch, and a spring rate of 51 Inch Pounds.

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

Unit System
View Spec Sheet
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

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