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181-ACS - 1.50 Inch Music Wire Extension Springs

The 181-ACS is a regular extension spring manufactured by Century Spring. It is made from high-quality music wire and has a durable zinc finish. This spring has a wire diameter of 0.018 inches, an outside diameter of 0.125 inches, and a free length of 1.5 inches. It has an initial tension of 0.4 Pound and a maximum deflection of 1.3 inches. The 181-ACS can handle a maximum load of 2.5 Pound Force. It features full loop ends, providing secure attachment. This regular extension spring is designed for various applications that require reliable extension and compression capabilities.

At Century Spring, we take pride in our fast shipping and extensive stock inventory. We understand the importance of timely delivery, which is why we strive to process and ship orders as quickly as possible. Additionally, our products, including the 181-ACS, are proudly made in the United States. By manufacturing our springs domestically, we ensure the highest level of quality and support local businesses. With our efficient shipping and ample supply, Century Spring is committed to providing our customers with the springs they need, when they need them.

Unit System
View Spec Sheet
Specs (in standard)
Label Value
Brand Century Spring
Ends Full Loop
Finish Zinc
Initial Tension 0.4 lb
Length 1.5 in
Material Music Wire
Outside Diameter 0.125 in
Part Type Standard
Rate 1.7 lbs/in
SKU 181-ACS
Sugg Max Deflection 1.3 in
Sugg Max Load 2.5 lbf
Wind Direction Left
Wire Diameter 0.018 in
Specs (in metric)
Label Value
Brand Century Spring
Ends Full Loop
Finish Zinc
Initial Tension 0.18 kg
Length 38.1 mm
Material Music Wire
Outside Diameter 3.18 mm
Part Type Standard
Rate 0.3 N/mm
SKU 181-ACS
Sugg Max Deflection 33.02 mm
Sugg Max Load 11.12 N
Wind Direction Left
Wire Diameter 0.46 mm
Inventory Status
In-stock
Estimated Lead Time
In-stock parts: usually ships in 12-24 hours
Quantity Price
1 - 49 $2.32
50 - 149 $2.21
150 - 299 $2.09
300 - 499 $1.98
500 - 749 $1.74
750 - 999 $1.51
1000+ Call for price