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12387 - 3.75 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 0.953 Inch and an initial tension of 12 Pound.

Unit System
View Spec Sheet
Specs (in standard)
Label Value
Brand Century Spring
Display Name 12387
Ends Machine Hook
Finish Zinc
Initial Tension 12 lb
Length 3.75 in
Material Spring Steel
Outside Diameter 0.953 in
Part Type Standard
Rate 24 lbs/in
SKU 12387CS
Sugg Max Deflection 1.9 in
Sugg Max Load 57 lbf
Wind Direction Left
Wire Diameter 0.121 in
Specs (in metric)
Label Value
Brand Century Spring
Display Name 12387
Ends Machine Hook
Finish Zinc
Initial Tension 5.44 kg
Length 95.25 mm
Material Spring Steel
Outside Diameter 24.21 mm
Part Type Standard
Rate 4.2 N/mm
SKU 12387CS
Sugg Max Deflection 48.26 mm
Sugg Max Load 253.54 N
Wind Direction Left
Wire Diameter 3.07 mm

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