MA-4020 › Complete Document History
Ring, Retaining, External, Tapered, Type I, Class 2, AMS 5520, Metric

Complete Current Edition:
   REVISION A - STABILIZED Feb 2019 - Feb. 18, 2019

Obsolete Revision Information:
   BASE R12 - REAFFIRMED IN 2012 - Dec. 1, 2012
   BASE R06 - REAFFIRMED IN 2006 - June 1, 2006
   BASE R01 - REAFFIRMED IN 2001 - Oct. 1, 2001
   DOD ADOPTION 1 - FYI ONLY: DOD ADOPTED - May 12, 1989
   BASE - REAFFIRMED IN 1991 & 1995 - Sept. 1, 1987