NASM21258, ADOPTION NOTICE (19 JUL 1999)., NASM21258, "WASHER, KEY, RETAINING, WHEEL BEARING", was adopted on 19-JUL-99 for use by the Department of Defense (DoD). Proposed changes by DoD activities must be submitted to the DoD Adopting Activity: Commander, Defense Supply Center Philadelphia, ATTN: DSCP-ITAA, 700 Robbins Avenue, Philadelphia, PA 19111-5096. Copies of this document may be purchased from the Aerospace Industries Association of America 1250 Eye Street, N.W., Suite 1200 Washington, DC, United States, 20005-3924.