M-39

M-39

Regular extension spring in Music Wire. This spring features an O.D. of 0.156 Inch, an initial tension of 0.9 Pound, and a spring rate of 7 Pound Force per Inch.

Current variant: M-39CS. Navigate to a different variant:
Diagram of extension spring with measurements
Unit System
Specs (in standard)
Label Value
Brand Century Spring
Display Name M-39
Ends Machine Hook
Finish Zinc
Initial Tension 0.9 lb
Length 1.09 in
Material Music Wire
Outside Diameter 0.156 in
Part Type Standard
Rate 7 lbf/in
Sugg Max Deflection 0.6 in
Sugg Max Load 5.1 lbf
Wind Direction Left
Wire Diameter 0.025 in
Specs (in metric)
Label Value
Brand Century Spring
Display Name M-39
Ends Machine Hook
Finish Zinc
Initial Tension 0.41 kg
Length 27.69 mm
Material Music Wire
Outside Diameter 3.96 mm
Part Type Standard
Rate 1.23 N/mm
Sugg Max Deflection 15.24 mm
Sugg Max Load 22.68 N
Wind Direction Left
Wire Diameter 0.64 mm

Inventory Status

In-stock

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Quantity Price
1 - 49 $1.94
50 - 149 $1.85
150 - 299 $1.75
300 - 499 $1.65
500 - 749 $1.46
750 - 999 $1.27
1000+ Call for price