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KK-90 - 1.38 Inch, 4.9 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 27 coils and Closed ends. This spring features an O.D. of 0.125 Inch, an I.D. of 0.089 Inch, and a spring rate of 4.9 Inch Pounds.

Unit System
View Spec Sheet
Specs (in standard)
Label Value
Brand Century Spring
Display Name KK-90
Ends Closed
Finish None
Free Length 1.38 in
Inside Diameter 0.089 in
Material Music Wire
Outside Diameter 0.125 in
Part Type Standard
Rate 4.9 lbs/in
SKU KK-90CS
Solid Length 0.5 in
Suggested Max Deflection 0.55 in
Suggested Max Load 2.7 lbf
Total Coils 27
Wire Diameter 0.018 in
Specs (in metric)
Label Value
Brand Century Spring
Display Name KK-90
Ends Closed
Finish None
Free Length 35.05 mm
Inside Diameter 2.26 mm
Material Music Wire
Outside Diameter 3.18 mm
Part Type Standard
Rate 0.86 N/mm
SKU KK-90CS
Solid Length 12.7 mm
Suggested Max Deflection 13.97 mm
Suggested Max Load 12.01 N
Total Coils 27
Wire Diameter 0.46 mm

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