138

138

Regular extension spring in Hand Drawn Steel. This spring features an O.D. of 0.875 Inch, an initial tension of 3 Pound, and a spring rate of 1.3 Pound Force per Inch.

Diagram of extension spring with measurements
Unit System
Specs (in standard)
Label Value
Brand Century Spring
Display Name 138
Ends Machine Hook
Finish Zinc
Initial Tension 3 lb
Length 8.5 in
Material Hand Drawn Steel
Outside Diameter 0.875 in
Part Type Standard
Rate 1.3 lbf/in
Sugg Max Deflection 12 in
Sugg Max Load 18 lbf
Wind Direction Left
Wire Diameter 0.08 in
Specs (in metric)
Label Value
Brand Century Spring
Display Name 138
Ends Machine Hook
Finish Zinc
Initial Tension 1.36 kg
Length 215.9 mm
Material Hand Drawn Steel
Outside Diameter 22.23 mm
Part Type Standard
Rate 0.23 N/mm
Sugg Max Deflection 304.8 mm
Sugg Max Load 80.06 N
Wind Direction Left
Wire Diameter 2.03 mm

Inventory Status

In-stock

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Quantity Price
1 - 49 $8.16
50 - 149 $7.76
150 - 299 $7.35
300 - 499 $6.94
500 - 749 $6.12
750 - 999 $5.31
1000+ Call for price