Rings / Spiral Retaining Rings / CM


Product Image


Part Data

  • Housing or Shaft Shaft
  • Axial or Radial Axial
  • Shaft Diameter Ds 3.812 inches
  • Groove Diameter Dg 3.6940 - 3.7060 inches
  • Groove Width W 0.068 - 0.073 inches
  • Groove Depth D 0.0560 inches
  • Free Diameter Df 3.628 - 3.668 inches
  • Section S 0.192 - 0.202 inches
  • Thickness T 0.0580 - 0.0640 inches
  • Interchange Mil Or Aero M274261 185

Performance Data

  • Thrust Load Ring Safety Factor Of 3 Pr 30680 lbs.
  • Thrust Load Groove Safety Factor Of 2 Pg 15090 lbs.
  • R.P.M. Limits Standard Material RPM 1470


  • Carbon Steel (SAE 1060-1090)
  • Beryllium Copper
  • Special Material Grades
  • Stainless Steel AISI 302
  • Stainless Steel AISI 316


For plated rings, add .002" (.05 mm) to the listed maximum thickness.

  • OIL - Oil over Steel, Carbon Steel



External, Medium Duty. These 2-turn rings provide 360 groove contact and are designed for applications with medium thrust loads.

Custom solutions

Can’t find what you’re looking for in an existing product, need a modified version of one of our standard parts, or simply aren’t sure what part you need?

Submit your custom specifications

Need help? Contact our Engineering team


CAD Models are provided for informational purposes only and may not represent the final part you receive.  Manufacturer assumes no responsibility for any such inconsistencies , and disclaims any liability to any party for any loss, damage, or disruption which may arise therefrom. Always contact Manufacturer for final measurements when specified in your design.


More than Parts. A True Partnership.

Our passion is creating the best rings, springs, and clamps. Our mission is to make your work a success. We are here for you.