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78 - 3.5 Inch High Carbon Steel Extension Spring

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

Regular extension spring in High Carbon Steel. This spring features an O.D. of 0.875 Inch and an initial tension of 4 Pound.

Unit System
View Spec Sheet
Specs (in standard)
Label Value
Brand Century Spring
Display Name 78
Ends Machine Hook
Finish Zinc
Initial Tension 4 lb
Length 3.5 in
Material High Carbon Steel
Outside Diameter 0.875 in
Part Type Standard
Rate 7.7 lbs/in
SKU 78CS
Sugg Max Deflection 2.8 in
Sugg Max Load 26 lbf
Wind Direction Left
Wire Diameter 0.091 in
Specs (in metric)
Label Value
Brand Century Spring
Display Name 78
Ends Machine Hook
Finish Zinc
Initial Tension 1.81 kg
Length 88.9 mm
Material High Carbon Steel
Outside Diameter 22.23 mm
Part Type Standard
Rate 1.35 N/mm
SKU 78CS
Sugg Max Deflection 71.12 mm
Sugg Max Load 115.65 N
Wind Direction Left
Wire Diameter 2.31 mm

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