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A-87CS - 0.31 Inch Music Wire Extension Springs

Inventory Status
Estimated Lead Time

The A-87CS is a regular extension spring manufactured by Century Spring. It is made from high-quality music wire and features a durable zinc finish. With a wire diameter of 0.016 inches and an outside diameter of 0.172 inches, this spring has a free length of 0.31 inches. It offers an initial tension of 0.1 pound and can withstand a maximum deflection of 0.28 inches. The A-87CS has a spring rate of 4.1 inch-pounds and can handle a maximum load of 1.2 pounds-force. Its ends are designed with full loops. This standard extension spring is ideal for a variety of applications.

At Century Spring, we take pride in our fast shipping and extensive stock inventory. Our products, including the A-87CS, are proudly made in the United States. We understand the importance of quick delivery and ensure that our customers receive their springs promptly. With our ample supply, you can trust Century Spring to provide the springs you need for your projects.

Unit System
Specs (in standard)
Label Value
Brand Century Spring
Ends Full Loop
Finish Zinc
Initial Tension 0.1 lb
Length 0.31 in
Material Music Wire
Outside Diameter 0.172 in
Part Type Standard
Rate 4.1 lbs/in
SKU A-87CS
Sugg Max Deflection 0.28 in
Sugg Max Load 1.2 lbf
Wind Direction Left
Wire Diameter 0.016 in
Specs (in metric)
Label Value
Brand Century Spring
Ends Full Loop
Finish Zinc
Initial Tension 0.05 kg
Length 7.87 mm
Material Music Wire
Outside Diameter 4.37 mm
Part Type Standard
Rate 0.72 N/mm
SKU A-87CS
Sugg Max Deflection 7.11 mm
Sugg Max Load 5.34 N
Wind Direction Left
Wire Diameter 0.41 mm