S-639

S-639

Regular extension spring in 302/304 Stainless Steel. This spring features an O.D. of 1 Inch, an initial tension of 9.1 Pound, and a spring rate of 15 Pound Force per Inch.

Diagram of extension spring with measurements
Unit System
Specs (in standard)
Label Value
Brand Century Spring
Display Name S-639
Ends Machine Hook
Finish None
Initial Tension 9.1 lb
Length 4 in
Material 302/304 Stainless Steel
Outside Diameter 1 in
Part Type Standard
Rate 15 lbf/in
Sugg Max Deflection 1.97 in
Sugg Max Load 33.7 lbf
Wind Direction Left
Wire Diameter 0.112 in
Specs (in metric)
Label Value
Brand Century Spring
Display Name S-639
Ends Machine Hook
Finish None
Initial Tension 4.13 kg
Length 101.6 mm
Material 302/304 Stainless Steel
Outside Diameter 25.4 mm
Part Type Standard
Rate 2.63 N/mm
Sugg Max Deflection 50.04 mm
Sugg Max Load 149.9 N
Wind Direction Left
Wire Diameter 2.84 mm

Inventory Status

In-stock

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Quantity Price
1 - 49 $15.74
50 - 149 $14.96
150 - 299 $14.17
300 - 499 $13.38
500 - 749 $11.81
750 - 999 $10.24
1000+ Call for price