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728 - 12 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 1.062 Inch and an initial tension of 15 Pound.

Unit System
View Spec Sheet
Specs (in standard)
Label Value
Brand Century Spring
Display Name 728
Ends Machine Hook
Finish Zinc
Initial Tension 15 lb
Length 12 in
Material High Carbon Steel
Outside Diameter 1.062 in
Part Type Standard
Rate 7.7 lbs/in
SKU 728CS
Sugg Max Deflection 7.1 in
Sugg Max Load 69 lbf
Wind Direction Left
Wire Diameter 0.135 in
Specs (in metric)
Label Value
Brand Century Spring
Display Name 728
Ends Machine Hook
Finish Zinc
Initial Tension 6.8 kg
Length 304.8 mm
Material High Carbon Steel
Outside Diameter 26.97 mm
Part Type Standard
Rate 1.35 N/mm
SKU 728CS
Sugg Max Deflection 180.34 mm
Sugg Max Load 306.91 N
Wind Direction Left
Wire Diameter 3.43 mm