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M-135CS - 0.81 Inch Music Wire Extension Springs

Inventory Status
Estimated Lead Time

The M-135CS is a regular extension spring manufactured by Century Spring. It is made from high-quality music wire and has a sleek, uncoated finish. This spring has a wire diameter of 0.027 inches and an outer diameter of 0.219 inches. With a free length of 0.81 inches, it provides the perfect amount of tension for your application. The M-135CS has a maximum deflection of 0.76 inches and can withstand a maximum load of 4.5 pounds. Its spring rate is 5.2 lbs/inch, making it ideal for a variety of projects. This spring features machine hooks on both ends, ensuring secure and reliable attachment.

At Century Spring, we take pride in our fast shipping and extensive inventory. We understand the urgency of your projects, which is why we strive to deliver your springs promptly. With our significant stock, you can rest assured that the M-135CS and other springs will be readily available whenever you need them. Additionally, all our springs are proudly made in the United States, guaranteeing superior quality and craftsmanship. Trust Century Spring for all your spring needs, and experience the convenience of our fast shipping and exceptional product selection.

Unit System
Specs (in standard)
Label Value
Brand Century Spring
Ends Machine Hook
Finish None
Initial Tension 0.6 lb
Length 0.81 in
Material Music Wire
Outside Diameter 0.219 in
Part Type Standard
Rate 5.2 lbs/in
SKU M-135CS
Sugg Max Deflection 0.76 in
Sugg Max Load 4.5 lbf
Wind Direction Left
Wire Diameter 0.027 in
Specs (in metric)
Label Value
Brand Century Spring
Ends Machine Hook
Finish None
Initial Tension 0.27 kg
Length 20.57 mm
Material Music Wire
Outside Diameter 5.56 mm
Part Type Standard
Rate 0.91 N/mm
SKU M-135CS
Sugg Max Deflection 19.3 mm
Sugg Max Load 20.02 N
Wind Direction Left
Wire Diameter 0.69 mm