N-139

N-139

Regular extension spring in Spring Steel. This spring features an O.D. of 0.312 Inch, an initial tension of 3 Pound, and a spring rate of 18 Pound Force per Inch.

Current variant: N-139CS. Navigate to a different variant:
Diagram of extension spring with measurements
Unit System
Specs (in standard)
Label Value
Brand Century Spring
Display Name N-139
Ends Machine Hook
Finish Zinc
Initial Tension 3 lb
Length 1.72 in
Material Spring Steel
Outside Diameter 0.312 in
Part Type Standard
Rate 18 lbf/in
Sugg Max Deflection 0.59 in
Sugg Max Load 14 lbf
Wind Direction Left
Wire Diameter 0.049 in
Specs (in metric)
Label Value
Brand Century Spring
Display Name N-139
Ends Machine Hook
Finish Zinc
Initial Tension 1.36 kg
Length 43.69 mm
Material Spring Steel
Outside Diameter 7.92 mm
Part Type Standard
Rate 3.15 N/mm
Sugg Max Deflection 14.99 mm
Sugg Max Load 62.27 N
Wind Direction Left
Wire Diameter 1.24 mm

Inventory Status

In-stock

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Quantity Price
1 - 49 $2.81
50 - 149 $2.67
150 - 299 $2.53
300 - 499 $2.39
500 - 749 $2.11
750 - 999 $1.83
1000+ Call for price