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Century Spring

12389CS - 4 Inch Spring Steel Extension Spring

Inventory Status
Estimated Lead Time

Regular extension spring in Spring Steel. This spring features an O.D. of 0.531 Inch and an initial tension of 6 Pound.

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Unit System
Specs (in standard)
Label Value
Brand Century Spring
Display Name 12389
Ends Machine Hook
Finish Zinc
Initial Tension 6 lb
Length 4 in
Material Spring Steel
Outside Diameter 0.531 in
Part Type Standard
Rate 10 lbs/in
SKU 12389CS
Sugg Max Deflection 2 in
Sugg Max Load 27 lbf
Wind Direction Left
Wire Diameter 0.075 in
Specs (in metric)
Label Value
Brand Century Spring
Display Name 12389
Ends Machine Hook
Finish Zinc
Initial Tension 2.72 kg
Length 101.6 mm
Material Spring Steel
Outside Diameter 13.49 mm
Part Type Standard
Rate 1.75 N/mm
SKU 12389CS
Sugg Max Deflection 50.8 mm
Sugg Max Load 120.1 N
Wind Direction Left
Wire Diameter 1.91 mm

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