AIA/NAS 1727-2012 pdf download NUT, SELF-LOCKING, ALIGNING, 450 °F AND 800 °F
MATERIAL:
NUT:
ALLOY STEEL: 8740 (UNS G87400) PER AMS322,AMS6325 OR AMS6327: E4340 (UNS G43406) PERAMS6415 OR AMS6484 MIL-S-5000: OR 4340 (UNS G43400) PER AMS6415 HEAT TREAT 3640 HRC WITH CONTROLS PER AMS2759.CRES: A286(UNS S66286) PER AMS5737，HEAT TREAT 160-190 KSI Ftu WITH CONTROLS PERAMS2759.
WASHER:
ALLOY STEEL: 8740(UNS G87400) PER AMS6322,AMS6325 OR AMS6327; E340 (UNS G43406) PERAMS6415 OR AMS648 MIL-S-5000: OR 4340 (UNS G43400) PER AMS6415HEAT TREAT 36-40HRC WITH CONTROLS PER AMS2759.CRES: A286(UNS S66286) PER AMS5737. HEAT TREAT 160-190 KSI Ftu WITH CONTROLS PERAMS2759,SIZES -3 THRU -9 ONLY. SIZES -10 THRU -16, PH13-8MO(UNS S13800) PERAMS5629 OR NICKEL ALLOY 718(UNS NO7718) PER AMS662
FINISH:
NUT AND WASHER:
ALLOY STEEL: CADMIUM PLATE PER AMS-QQ-P-416,TYPE IICLASS 2CRES: PASSIVATE PER AMS2700，METHOD 1CLASS 4/171ORCADMIUM PLATE PER AMS-OO-P-416TYPE IICLASS 2 (CODE LETTER “P)POST PLATE HYDROGEN EMBRITTLEMENT BAKING AND TESTING PER AMS-QQ-P-416 IS NOTREOUIRED FOR CRES MATERIAL.
LUBRICATION:
NUT AND WASHER:NONE OR CETYL ALCOHOL PER AS87132, TYPE , GRADE A OR SOLID FILM LUBE PER AS5272, TYPEI(NO SOLID FILM LUBRICANT PERMITTED ON BEARING FACE OF WASHER)/16/
CODE:
MATERIAL CODE FOLLOWS BASIC NUMBER:’DENOTES ALLOY STEEL FOR SIZES -3 THRU -6A’DENOTES ALLOY STEEL FOR SIZES A THRU A16’C’ DENOTES CRES FOR SIZES C3 THRU C6K’ DENOTES CRES FOR SIZES K7 THRU K16FIRST DASH NUMBER DENOTES NUT INSIDE DIAMETER IN 0625 INCREMENTS AND COMPANIONWASHERFINISH AND LUBRICANT CODES FOLLOWING FIRST DASH NUMBER:P’ DENOTES CADMIUM PLATING OPTION FOR CRESNO CODE DENOTES NO LUBRICANTD’DENOTES SOLID FILM LUBRICANTE’DENOTES CETYL ALCOHOL LUBRICANT

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