This military standard is approved by the Department of Defense and is mandatory on all activities. Selection for all new engineering and design applications and for repetitive use shall be made from this document.

1. MATERIAL: ALUMINUM AMS 4212 OR AMS 4281

2. PARTING LINES OF CASTINGS ARE TO BE COMMERCIALLY CLEAN.

3. SURFACE TEXTURE: USAS B46.1-1962 UNSPECIFIED SURFACES AS MACHINED OR CAST.

4. FLUORESCENT PENETRANT INSPECTION PER AMS 2645.

5. FINISH: ANODIC TREAT ALL OVER PER AMS 2470 OR AMS 2471. PAINT PER AMS 2510 WHERE SHOWN. DIMENSIONS APPLY BEFORE PAINTING.

6. BREAK SHARP EDGES .003-.015 UNLESS OTHERWISE SPECIFIED.

7. DIMENSIONS IN INCHES. UNLESS OTHERWISE SPECIFIED; TOLERANCES; LINEAR DIMENSIONS ±.010, ANGULAR DIMENSIONS ±5°.

8. DIMENSIONS AND TOLERANCING: USAS Y14.5-1966. ø = Diameter

AS AND AMS ARE SOCIETY OF AUTOMOTIVE ENGINEERS, INC., PUBLICATIONS.

THIS STANDARD WAS DEVELOPED COOPERATIVELY WITH THE MILITARY SERVICES BY THE SAE AEROSPACE PART STANDARDS DIVISION.