M-45

M-45

Regular extension spring in Music Wire. This spring features an O.D. of 0.203 Inch, an initial tension of 0.9 Pound, and a spring rate of 4.2 Pound Force per Inch.

Diagram of extension spring with measurements
Unit System
Specs (in standard)
Label Value
Brand Century Spring
Display Name M-45
Ends Machine Hook
Finish Gold Iridite
Initial Tension 0.9 lb
Length 1.5 in
Material Music Wire
Outside Diameter 0.203 in
Part Type Standard
Rate 4.2 lbf/in
Sugg Max Deflection 1.2 in
Sugg Max Load 6.1 lbf
Wind Direction Left
Wire Diameter 0.029 in
Specs (in metric)
Label Value
Brand Century Spring
Display Name M-45
Ends Machine Hook
Finish Gold Iridite
Initial Tension 0.41 kg
Length 38.1 mm
Material Music Wire
Outside Diameter 5.16 mm
Part Type Standard
Rate 0.74 N/mm
Sugg Max Deflection 30.48 mm
Sugg Max Load 27.13 N
Wind Direction Left
Wire Diameter 0.74 mm

Inventory Status

In-stock

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Quantity Price
1 - 49 $1.82
50 - 149 $1.73
150 - 299 $1.64
300 - 499 $1.55
500 - 749 $1.37
750 - 999 $1.19
1000+ Call for price