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NN-31 - 0.69 Inch Spring Steel Compression Spring

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

Compression spring manufactured from Spring Steel with 8 coils and Closed ends. This spring features an O.D. of 0.219 Inch, and an I.D. of 0.125 Inch.

Unit System
View Spec Sheet
Specs (in standard)
Label Value
Brand Century Spring
Display Name NN-31
Ends Closed
Finish None
Free Length 0.69 in
Inside Diameter 0.125 in
Material Spring Steel
Outside Diameter 0.219 in
Part Type Standard
Rate 230 lbs/in
SKU NN-31CS
Solid Length 0.42 in
Suggested Max Deflection 0.07 in
Suggested Max Load 17 lbf
Total Coils 8
Wire Diameter 0.047 in
Specs (in metric)
Label Value
Brand Century Spring
Display Name NN-31
Ends Closed
Finish None
Free Length 17.53 mm
Inside Diameter 3.18 mm
Material Spring Steel
Outside Diameter 5.56 mm
Part Type Standard
Rate 40.27 N/mm
SKU NN-31CS
Solid Length 10.67 mm
Suggested Max Deflection 1.78 mm
Suggested Max Load 75.62 N
Total Coils 8
Wire Diameter 1.19 mm

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