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5515

Regular extension spring in Spring Steel. This spring features an O.D. of 0.375 Inch, an initial tension of 4 Pound, and a spring rate of 21 Inch Pounds.

Diagram of extension spring with measurements
Unit System
View Spec Sheet
Specs (in standard)
Label Value
Brand Century Spring
Display Name 5515
Ends Machine Hook
Finish Zinc
Initial Tension 4 lb
Length 1.75 in
Material Spring Steel
Outside Diameter 0.375 in
Part Type Standard
Rate 21 lbf-in
Sugg Max Deflection 0.61 in
Sugg Max Load 17 lbf
Wind Direction Left
Wire Diameter 0.057 in
Specs (in metric)
Label Value
Brand Century Spring
Display Name 5515
Ends Machine Hook
Finish Zinc
Initial Tension 1.81 kg
Length 44.45 mm
Material Spring Steel
Outside Diameter 9.53 mm
Part Type Standard
Rate 3.68 N-mm
Sugg Max Deflection 15.49 mm
Sugg Max Load 75.62 N
Wind Direction Left
Wire Diameter 1.45 mm
Inventory Status
In-stock
Quantity Price
1 - 49 $3.31
50 - 149 $3.15
150 - 299 $2.98
300 - 499 $2.82
500 - 749 $2.49
750 - 999 $2.16
1000+ Call for price