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B12-9 - 0.44 Inch 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 12.3 coils and Closed & Ground ends. This spring features an O.D. of 0.125 Inch, and an I.D. of 0.079 Inch.

Unit System
View Spec Sheet
Specs (in standard)
Label Value
Brand Century Spring
Display Name B12-9
Ends Closed & Ground
Finish Black Oxide
Free Length 0.44 in
Inside Diameter 0.079 in
Material Music Wire
Outside Diameter 0.125 in
Part Type Standard
Rate 37 lbs/in
SKU B12-9CS
Solid Length 0.28 in
Suggested Max Deflection 0.15 in
Suggested Max Load 5.5 lbf
Total Coils 12.3
Wire Diameter 0.023 in
Specs (in metric)
Label Value
Brand Century Spring
Display Name B12-9
Ends Closed & Ground
Finish Black Oxide
Free Length 11.18 mm
Inside Diameter 2.01 mm
Material Music Wire
Outside Diameter 3.18 mm
Part Type Standard
Rate 6.48 N/mm
SKU B12-9CS
Solid Length 7.11 mm
Suggested Max Deflection 3.81 mm
Suggested Max Load 24.46 N
Total Coils 12.3
Wire Diameter 0.58 mm

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