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B4-4 - 0.73 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 18.5 coils and Closed ends. This spring features an O.D. of 0.125 Inch, and an I.D. of 0.089 Inch.

Unit System
View Spec Sheet
Specs (in standard)
Label Value
Brand Century Spring
Display Name B4-4
Ends Closed
Finish None
Free Length 0.73 in
Inside Diameter 0.089 in
Material Music Wire
Outside Diameter 0.125 in
Part Type Standard
Rate 7.5 lbs/in
SKU B4-4CS
Solid Length 0.35 in
Suggested Max Deflection 0.36 in
Suggested Max Load 2.7 lbf
Total Coils 18.5
Wire Diameter 0.018 in
Specs (in metric)
Label Value
Brand Century Spring
Display Name B4-4
Ends Closed
Finish None
Free Length 18.54 mm
Inside Diameter 2.26 mm
Material Music Wire
Outside Diameter 3.18 mm
Part Type Standard
Rate 1.31 N/mm
SKU B4-4CS
Solid Length 8.89 mm
Suggested Max Deflection 9.14 mm
Suggested Max Load 12.01 N
Total Coils 18.5
Wire Diameter 0.46 mm

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