Rings / Spiral Retaining Rings / MCA


Product Image


Part Data

  • Housing or Shaft Shaft
  • Axial or Radial Axial
  • Shaft Diameter Ds 13 mm
  • Groove Diameter Dg 12.180 - 12.300 mm
  • Groove Width W 1.00 - 1.08 mm
  • Free Diameter Df 11.800 - 12.130 mm
  • Section S 1.14 - 1.35 mm
  • Thickness T 0.84 - 0.94 mm
  • Interchange Mil Or Aero

Performance Data

  • Thrust Load Ring Safety Factor Of 3 Pr 12100.00 N
  • Thrust Load Groove Safety Factor Of 2 Pg 2410.00 N
  • R.P.M. Limits Standard Material RPM 20094


  • 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, Aerospace, Metric. Dimensions Conform to Metric Aerospace Specification MA 4016*.

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.