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729 - 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 Inch and an initial tension of 11 Pound.

Unit System
View Spec Sheet
Specs (in standard)
Label Value
Brand Century Spring
Display Name 729
Ends Machine Hook
Finish Zinc
Initial Tension 11 lb
Length 12 in
Material High Carbon Steel
Outside Diameter 1 in
Part Type Standard
Rate 5 lbs/in
SKU 729CS
Sugg Max Deflection 8.4 in
Sugg Max Load 52 lbf
Wind Direction Left
Wire Diameter 0.12 in
Specs (in metric)
Label Value
Brand Century Spring
Display Name 729
Ends Machine Hook
Finish Zinc
Initial Tension 4.99 kg
Length 304.8 mm
Material High Carbon Steel
Outside Diameter 25.4 mm
Part Type Standard
Rate 0.88 N/mm
SKU 729CS
Sugg Max Deflection 213.36 mm
Sugg Max Load 231.3 N
Wind Direction Left
Wire Diameter 3.05 mm

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