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5518 - 12 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 0.875 Inch and an initial tension of 25 Pound.

Unit System
View Spec Sheet
Specs (in standard)
Label Value
Brand Century Spring
Display Name 5518
Ends Machine Hook
Finish Zinc
Initial Tension 25 lb
Length 12 in
Material Spring Steel
Outside Diameter 0.875 in
Part Type Standard
Rate 16 lbs/in
SKU 5518CS
Sugg Max Deflection 4.1 in
Sugg Max Load 91 lbf
Wind Direction Left
Wire Diameter 0.137 in
Specs (in metric)
Label Value
Brand Century Spring
Display Name 5518
Ends Machine Hook
Finish Zinc
Initial Tension 11.34 kg
Length 304.8 mm
Material Spring Steel
Outside Diameter 22.23 mm
Part Type Standard
Rate 2.8 N/mm
SKU 5518CS
Sugg Max Deflection 104.14 mm
Sugg Max Load 404.77 N
Wind Direction Left
Wire Diameter 3.48 mm

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