This browser is no longer supported. Upgrade to Microsoft Edge or switch to a supported browser, like Chrome, Safari, or Firefox, to explore the MW Components website.

We're sorry for the inconvenience.

71438 - 1 Inch, 139 Inch Pounds Music Wire Compression Spring

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

Compression spring manufactured from Music Wire with 8.63 coils and Closed & Ground ends. This spring features an O.D. of 0.42 Inch, an I.D. of 0.276 Inch, and a spring rate of 139 Inch Pounds.

Unit System
View Spec Sheet
Specs (in standard)
Label Value
Brand Century Spring
Display Name 71438
Ends Closed & Ground
Finish None
Free Length 1 in
Inside Diameter 0.276 in
Material Music Wire
Outside Diameter 0.42 in
Part Type Standard
Rate 139 lbs/in
SKU 71438CS
Solid Length 0.62 in
Suggested Max Deflection 0.29 in
Suggested Max Load 40 lbf
Total Coils 8.63
Wire Diameter 0.072 in
Specs (in metric)
Label Value
Brand Century Spring
Display Name 71438
Ends Closed & Ground
Finish None
Free Length 25.4 mm
Inside Diameter 7.01 mm
Material Music Wire
Outside Diameter 10.67 mm
Part Type Standard
Rate 24.34 N/mm
SKU 71438CS
Solid Length 15.75 mm
Suggested Max Deflection 7.37 mm
Suggested Max Load 177.92 N
Total Coils 8.63
Wire Diameter 1.83 mm