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170-BCS - 1.88 Inch Music Wire Extension Springs

The 170-BCS is a regular extension spring manufactured by Century Spring. It is made from Music Wire and features a zinc finish. This spring has a wire diameter of 0.023 inches, an outer diameter of 0.219 inches, and a free length of 1.88 inches. It has an initial tension of 0.3 Pound and a maximum deflection of 3.4 inches. The 170-BCS has a spring rate of 0.79 inches per pound and a maximum load of 2.9 Pound Force. It is equipped with machine hook ends. As a regular extension spring, it is suitable for various applications requiring extension and return of a specific load.

At Century Spring, we pride ourselves on fast shipping and a substantial inventory. Our products, including the 170-BCS, are proudly made in the United States. With our efficient shipping and ample stock, Century Spring ensures that you can promptly receive the springs you need for your projects.

Unit System
View Spec Sheet
Specs (in standard)
Label Value
Brand Century Spring
Ends Machine Hook
Finish Zinc
Initial Tension 0.3 lb
Length 1.88 in
Material Music Wire
Outside Diameter 0.219 in
Part Type Standard
Rate 0.79 lbs/in
SKU 170-BCS
Sugg Max Deflection 3.4 in
Sugg Max Load 2.9 lbf
Wind Direction Left
Wire Diameter 0.023 in
Specs (in metric)
Label Value
Brand Century Spring
Ends Machine Hook
Finish Zinc
Initial Tension 0.14 kg
Length 47.75 mm
Material Music Wire
Outside Diameter 5.56 mm
Part Type Standard
Rate 0.14 N/mm
SKU 170-BCS
Sugg Max Deflection 86.36 mm
Sugg Max Load 12.9 N
Wind Direction Left
Wire Diameter 0.58 mm
Inventory Status
In-stock
Estimated Lead Time
In-stock parts: usually ships in 12-24 hours
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