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B1-39CS - 1.38 Inch Music Wire Extension Spring

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Regular extension spring in Music Wire. This spring features an O.D. of 0.25 Inch and an initial tension of 0.4 Pound.

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Unit System
Specs (in standard)
Label Value
Brand Century Spring
Display Name B1-39
Ends Full Loop
Finish Black Oxide
Initial Tension 0.4 lb
Length 1.38 in
Material Music Wire
Outside Diameter 0.25 in
Part Type Standard
Rate 1.6 lbs/in
SKU B1-39CS
Sugg Max Deflection 2 in
Sugg Max Load 3.5 lbf
Wire Diameter 0.026 in
Specs (in metric)
Label Value
Brand Century Spring
Display Name B1-39
Ends Full Loop
Finish Black Oxide
Initial Tension 0.18 kg
Length 35.05 mm
Material Music Wire
Outside Diameter 6.35 mm
Part Type Standard
Rate 0.28 N/mm
SKU B1-39CS
Sugg Max Deflection 50.8 mm
Sugg Max Load 15.57 N
Wire Diameter 0.66 mm

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