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N-139 - 1.72 Inch Spring Steel Extension Spring

Inventory Status
In-stock
Estimated Lead Time
In-stock parts: usually ships in 12-24 hours

Regular extension spring in Spring Steel. This spring features an O.D. of 0.312 Inch and an initial tension of 3 Pound.

Unit System
View Spec Sheet
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 lbs/in
SKU N-139CS
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
SKU N-139CS
Sugg Max Deflection 14.99 mm
Sugg Max Load 62.27 N
Wind Direction Left
Wire Diameter 1.24 mm

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