173-B

173-B

Regular extension spring in Music Wire. This spring features an O.D. of 0.25 Inch, an initial tension of 0.2 Pound, and a spring rate of 0.51 Pound Force per Inch.

Current variant: 173-BCS. Navigate to a different variant:
Diagram of extension spring with measurements
Unit System
Specs (in standard)
Label Value
Brand Century Spring
Display Name 173-B
Ends Full Loop
Finish Zinc
Initial Tension 0.2 lb
Length 1.88 in
Material Music Wire
Outside Diameter 0.25 in
Part Type Standard
Rate 0.51 lbf/in
Sugg Max Deflection 4.5 in
Sugg Max Load 2.5 lbf
Wind Direction Left
Wire Diameter 0.023 in
Specs (in metric)
Label Value
Brand Century Spring
Display Name 173-B
Ends Full Loop
Finish Zinc
Initial Tension 0.09 kg
Length 47.75 mm
Material Music Wire
Outside Diameter 6.35 mm
Part Type Standard
Rate 0.09 N/mm
Sugg Max Deflection 114.3 mm
Sugg Max Load 11.12 N
Wind Direction Left
Wire Diameter 0.58 mm

Inventory Status

In-stock

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Quantity Price
1 - 49 $2.41
50 - 149 $2.29
150 - 299 $2.17
300 - 499 $2.05
500 - 749 $1.81
750 - 999 $1.57
1000+ Call for price