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S-640 - 4.72 Inch 302/304 Stainless Steel Extension Spring

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

Regular extension spring in 302/304 Stainless Steel. This spring features an O.D. of 0.468 Inch and an initial tension of 6 Pound.

Unit System
View Spec Sheet
Specs (in standard)
Label Value
Brand Century Spring
Display Name S-640
Ends Machine Hook
Finish None
Initial Tension 6 lb
Length 4.72 in
Material 302/304 Stainless Steel
Outside Diameter 0.468 in
Part Type Standard
Rate 9.5 lbs/in
SKU S-640CS
Sugg Max Deflection 2 in
Sugg Max Load 25 lbf
Wind Direction Left
Wire Diameter 0.072 in
Specs (in metric)
Label Value
Brand Century Spring
Display Name S-640
Ends Machine Hook
Finish None
Initial Tension 2.72 kg
Length 119.89 mm
Material 302/304 Stainless Steel
Outside Diameter 11.89 mm
Part Type Standard
Rate 1.66 N/mm
SKU S-640CS
Sugg Max Deflection 50.8 mm
Sugg Max Load 111.2 N
Wind Direction Left
Wire Diameter 1.83 mm

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