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100 YRS

The Countdown to 100 Years of Century Spring!

Since 1927, Century Spring Corp has been the original industry-leading spring manufacturer for both stock and custom springs. Read about 100 Years of Century Spring here.

218 DAYS

MM-81CS - 0.81 Inch High Carbon Compression Springs

Inventory:           
Estimated Lead Time

The MM-81CS is a regular compression spring manufactured by Century Spring. It is made from High Carbon material and has a zinc finish. This spring has a wire diameter of 0.032 inches, an outside diameter of 0.219 inches, and a free length of 0.81 inches. It has a spring rate of 16 lbs/inch and a maximum load of 4.9 Pound Force. The ends of this spring are closed and ground. The MM-81CS is a standard compression spring and is suitable for various applications.

Century Spring offers fast shipping and maintains a significant stock inventory. We are proud to manufacture our products, including the MM-81CS, in the United States. With our efficient shipping and ample supply, Century Spring ensures that customers can quickly receive the springs they need for their projects.

Download CAD
Unit System
Specs (in standard)
Label Value
Brand Century Spring
Ends Closed & Ground
Finish Zinc
Free Length 0.81 in
Inside Diameter 0.155 in
Material Spring Steel
Outside Diameter 0.219 in
Part Type Standard
Rate 16 lbs/in
SKU MM-81CS
Solid Length 0.51 in
Suggested Max Deflection 0.3 in
Suggested Max Load 4.9 lbf
Total Coils 16
Wire Diameter 0.032 in
Specs (in metric)
Label Value
Brand Century Spring
Ends Closed & Ground
Finish Zinc
Free Length 20.57 mm
Inside Diameter 3.94 mm
Material Spring Steel
Outside Diameter 5.56 mm
Part Type Standard
Rate 2.8 N/mm
SKU MM-81CS
Solid Length 12.95 mm
Suggested Max Deflection 7.62 mm
Suggested Max Load 21.8 N
Total Coils 16
Wire Diameter 0.81 mm