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S-638 - 12.8 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 1.406 Inch and an initial tension of 69 Pound.

Unit System
View Spec Sheet
Specs (in standard)
Label Value
Brand Century Spring
Display Name S-638
Ends Extended Hook
Finish None
Initial Tension 69 lb
Length 12.8 in
Material 302/304 Stainless Steel
Outside Diameter 1.406 in
Part Type Standard
Rate 46 lbs/in
SKU S-638CS
Sugg Max Deflection 2.9 in
Sugg Max Load 202 lbf
Wind Direction Left
Wire Diameter 0.225 in
Specs (in metric)
Label Value
Brand Century Spring
Display Name S-638
Ends Extended Hook
Finish None
Initial Tension 31.29 kg
Length 325.12 mm
Material 302/304 Stainless Steel
Outside Diameter 35.71 mm
Part Type Standard
Rate 8.05 N/mm
SKU S-638CS
Sugg Max Deflection 73.66 mm
Sugg Max Load 898.5 N
Wind Direction Left
Wire Diameter 5.72 mm

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