AIA/NAS 2842-2850-2013 pdf download BOLT, BRAZIER HEAD, OFFSET CRUCIFORM AND DOVETAIL SLOT, 1 80 KSI
MATERIAL:
ALLOY STEEL – 41 40 (UNS G41 400) PER AMS6382, 4340 (UNS G43406) PER MIL-S-5000 AMS641 5 OR AMS6484, OR 8740 (UNS G87400) PER MIL-S-6049 AMS6327, AMS6322 OR AMS6325.
CRES – A286 (UNS S66286) CONFORMING TO THE CHEMISTRY OF AMS5731 , AMS5732,
AMS5737 OR AMS5853.
TITANIUM ALLOY – 6AL-6V-2SN (UNS R56620) PER AMS4971 .
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 80-200 KSI Ftu. 39 – 43HRC.
CRES: 1 80-21 0 KSI Ftu
TITANIUM ALLOY: 1 80 KSI Ftu MIN
FINISH: ALLOY STEEL – CADMIUM PLATE PER AMS-QQ-P-41 6, TYPE II, CLASS 2. BOLTS ARE NOT TO BE PICKLED. IMMEDIATELY AFTER PLATING (WITHIN 1 HOUR) BAKE AT 375 ± 25 °F FOR A MINIMUM OF 23 HOURS.
CRES – CLEAN AND PASSIVATE PER AMS2700, METHOD 1 , CLASS 4. OPTIONAL ALUMINUM COAT PER NAS4006 DESIGNATED BY CODE “P”. EXCEPT ON PARTS CODED “N”, INCLUDE A HALOGEN FREE CETYL ALCOHOL LUBRICANT ON ALL CRES BOLTS BOTH WITH AND WITHOUT THE NAS4006 COATING. APPLY THE LUBRICANT ON “P” CODE BOLTS ONLY AFTER THE NAS4006 COATING IS APPLIED.
TITANIUM ALLOY – NONE. OPTIONAL ALUMINUM COAT PER NAS4006 DESIGNATED BY CODE “P”. EXCEPT ON PARTS CODED “N”, INCLUDE A HALOGEN FREE CETYL ALCOHOL LUBRICANT ON ALL TITANIUM ALLOY BOLTS BOTH WITH AND WITHOUT THE NAS4006 COATING. APPLY THE LUBRICANT ON “P” CODE BOLTS ONLY AFTER THE NAS4006 COATING IS APPLIED.
CODE: ADD “-” BETWEEN BASIC PART NUMBER AND DASH NUMBER FOR BOLTS, ALLOY STEEL, UNDRILLED.
ADD “C” IN LIEU OF DASH TO DESIGNATE CORROSION RESISTANT STEEL.
ADD “D” TO DASH NUMBER FOR DRILLED SHANK. /1 4/
ADD “H” TO DASH NUMBER FOR DOVETAIL SLOT RECESS.
ADD “N” TO DASH NUMBER FOR BOLTS WITHOUT CETYL ALCOHOL LUBRICANT.
ADD “P” TO DASH NUMBER FOR BOLTS WITH ALUMINUM COAT.
ADD “T” IN LIEU OF DASH TO DESIGNATE TITANIUM ALLOY.
ADD “T” TO DASH NUMBER FOR OFFSET CRUCIFORM RECESS.

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