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B3-4CS - 0.75 Inch Music Wire Extension Spring

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Regular extension spring in Music Wire. This spring features an O.D. of 0.172 Inch and an initial tension of 0.3 Pound.

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Unit System
Specs (in standard)
Label Value
Brand Century Spring
Display Name B3-4
Ends Extended Hook
Finish None
Initial Tension 0.3 lb
Length 0.75 in
Material Music Wire
Outside Diameter 0.172 in
Part Type Standard
Rate 3 lbs/in
SKU B3-4CS
Sugg Max Deflection 0.84 in
Sugg Max Load 2.9 lbf
Wire Diameter 0.021 in
Specs (in metric)
Label Value
Brand Century Spring
Display Name B3-4
Ends Extended Hook
Finish None
Initial Tension 0.14 kg
Length 19.05 mm
Material Music Wire
Outside Diameter 4.37 mm
Part Type Standard
Rate 0.53 N/mm
SKU B3-4CS
Sugg Max Deflection 21.34 mm
Sugg Max Load 12.9 N
Wire Diameter 0.53 mm

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