AIA/NAS 823-2011 pdf download CAST SURFACE COMPARISON STANDARD
MATERIAL:
356 ALUMINUM ALLOY (UNS A03560) PER QQ-A-596 ASTM B1 08/B1 08M, WITH SUITABLE CONTAINER AND ENCLOSURE.
NOTES:
(1 ) SURFACE TO HAVE ROUGHNESS SHOWN WITHIN APPROXIMATE ± 20 MICROINCHES (± 0,50 MICROMETERS) PER ASME B46.1 , AND SURFACE ROUHGNESS SYMBOLS PER ASME Y1 4.36M, WHEN MEASURED WITH AN INSTRUMENT HAVING A CONICAL STYLUS WITH A .005 INCH (.1 3 MILLIMETER) RADIUS AND A .300 INCH (7.6 MILLIMETER) CUTOFF WIDTH.
(2) THE “C” NUMBER MAY BE USED FOR DRAWING CALLOUT IF THIS STANDARD IS REFERENCED.
(3) INCLUDE THE NAS NUMBER ON THE BACK OF THE STANDARD PART, RAISED OR DEPRESSED.
(4) TOLERANCES UNLESS OTHERWISE SPECIFIED: FRACTIONS ± 1 /32.
(5) MICROINCH AND MICROMETER NUMBERS ARE INCLUDED FOR REFERENCE ONLY.
(6) DIMENSIONS IN INCHES EXCEPT AS NOTED.
(7) THIS STANDARD TAKES PRECEDENCE OVER DOCUMENTS REFERENCED HEREIN.
(8) UNLESS OTHERWISE SPECIFIED, PART INVENTORY MANUFACTURED TO PREVIOUS REVISIONS OF THE APPLICABLE DRAWING OR SPECIFICATION MAY BE PROCURED AND USED UNTIL STOCK IS DEPLETED.
(9) UNLESS OTHERWISE SPECIFIED HEREIN, REFERENCED DOCUMENTS SHALL BE THE ISSUE IN EFFECT ON DATE OF MANUFACTURE. HOWEVER, EXISTING MATERIAL INVENTORY CERTIFIED TO A PREVIOUS REVISION OF THE APPLICABLE MATERIAL SPECIFICATION(S) IS ACCEPTABLE FOR USE UNTIL DEPLETION.
(1 0) DIMENSIONING AND TOLERANCING PER ANSI Y1 4.5M-1 982.

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