AIA/NAS 1218-2011 pdf download BOLT, PAN HEAD, SELF-LOCKING OPTIONAL
MATERIAL:
ALLOY STEEL: 41 40 (UNS G41 400) PER MIL-S-5626 AMS6382 OR AMS6349, 4340 (UNS G43400) PER AMS641 5, E4340 (UNS G43406) PER MIL-S-5000 AMS 6415 OR AMS 6484, OR 8740 (UNS G87400) PER MIL-S-6049 AMS6322, AMS6325, OR AMS6327.
CRES: A286 (UNS S66286) CONFORMING TO THE CHEMISTRY OF AMS5731 , AMS5732, AMS5737 OR AMS5853.
302 CRES, CONDITION B OR 305 CRES PER QQ S 763.
TITANIUM ALLOY: 6Al-4V (UNS R56400) PER AMS4928 OR AMS4967.
LOCKING ELEMENT: NYLON OR EQUIVALENT.
HEAT TREATMENT:
DEVELOP BASIC MATERIAL PROPERTIES AS FOLLOWS, WITH CONTROLS PER AMS2759 FOR ALLOY STEEL AND CRES AND AMS-H-81 200 OR AMS2801 FOR TITANIUM.
ALLOY STEEL: 1 60-1 80 KSI Ftu.
CRES: 1 60-1 90 KSI Ftu. PRECIPITATION HARDENING PER AMS5853. /6/
302 OR 305 CRES 1 25 KSI MINIMUM TENSILE STRENGTH.
TITANIUM: 1 60-1 80 KSI Ftu.
FINISH:
ALLOY STEEL: CADMIUM PLATE PER AMS-QQ-P-41 6, TYPE I, CLASS 3; TYPE II, CLASS 2; TYPE II,CLASS 3; OR TYPE II, CLASS 2, WITH BLACK FINISH PER UNICHROME DIP BULLETIN 65 B Cd (SEE “CODE”). /3/
CRES: PASSIVATE PER AMS2700, METHOD 1 , CLASS 4; OR CADMIUM PLATE PER AMS-QQ-P-41 6,TYPE II, CLASS 2 (SEE CODE).
302 OR 305 CRES: PASSIVATE PER QQ P-35.
TITANIUM: NO FINISH.
CODE:
SECOND DIGIT OF FIRST DASH NUMBER FOR “08” SIZE AND SMALLER INDICATES THREAD NUMBER

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