AIA/NAS 1523-2010 pdf download PACKING WITH RETAINER
FINISH: ALLOY STEEL – CADMIUM PLATE PER AMS-QQ-P-416, TYPE II, CLASS 2 EXCEPT COLOR MAY INCLUDE BLACK /13/.
CRES – PASSIVATE PER AMS2700, METHOD 1, CLASS 4
ALUMINUM ALLOY – ANODIC COAT, MIL-A-8625, TYPE II, CLASS 1, (UNDYED) OR CLASS 2 (DYED)
CODE: A DASH OR LETTER AFTER THE BASIC NUMBER INDICATES THE MATERIAL OF THE RETAINER.
“-” = ALLOY STEEL, 4130
“C” = CRES
“AA” = ALUMINUM ALLOY
DASH NUMBER INDICATES THE SIZE OF THE PACKING AND RETAINER (SEE TABLE I).
THE LETTER AFTER THE DASH NUMBER INDICATES THE MATERIAL OF THE PACKING AND COLOR CODE (SEE TABLE II, CODE DESIGNATION).
EXAMPLES OF PART NUMBERS:
NAS1523-10E = ALLOY STEEL RETAINER, FLUOROCARBON PACKING FOR 5/8 INCH SCREW
NAS1523C12N = CRES RETAINER, BUTYL RUBBER PACKING FOR 3/4 INCH SCREW
NAS1523AA3H = ALUMINUM ALLOY RETAINER, SILICONE PACKING FOR A #10 SCREW

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