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81138S - 4.5 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 1.5 Inch and an initial tension of 4 Pound.

Unit System
View Spec Sheet
Specs (in standard)
Label Value
Brand Century Spring
Display Name 81138S
Ends Full Loop
Finish None
Initial Tension 4 lb
Length 4.5 in
Material 302/304 Stainless Steel
Outside Diameter 1.5 in
Part Type Standard
Rate 8.2 lbs/in
SKU 81138SCS
Sugg Max Deflection 3.7 in
Sugg Max Load 34 lbf
Wind Direction Left
Wire Diameter 0.125 in
Specs (in metric)
Label Value
Brand Century Spring
Display Name 81138S
Ends Full Loop
Finish None
Initial Tension 1.81 kg
Length 114.3 mm
Material 302/304 Stainless Steel
Outside Diameter 38.1 mm
Part Type Standard
Rate 1.44 N/mm
SKU 81138SCS
Sugg Max Deflection 93.98 mm
Sugg Max Load 151.23 N
Wind Direction Left
Wire Diameter 3.18 mm

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