AIA/NAS 1102-2013 pdf download SCREW, MACHINE, FLAT 1 00° HEAD, FULL THREAD, OFFSET CRUCIFORM
MATERIAL:
ALLOY STEEL: 4140 (UNS G41400) PER IL-S-5626 AMS6382, 4340 (UNS G43406) PER IL-S-5000AMS6415 OR AMS6484,OR 8740(UNS G87400) PER MIL-S-6049 AMS6322CRES: A286 (UNS S66286) CONFORMING TO THE CHEMISTRY OF AMS5731,AMS5732, AMS5737 ORAMS5853.TITANIUM ALLOY: 6AI-4V (UNS R56400) PER AMS4967 AND AMS4928
HEAT TREATMENT:
DEVELOP BASIC MATERIAL PROPERTIES AS FOLLOWS,WITH CONTROLS PER AMS-H-6875 AMS2759FOR ALLOY STEEL AND CRES AND AMS-H-81200 OR AMS2801 FOR TITANIUM:ALLOY STEEL:160-180 KSI FTU.CRES: 160-190 KSIFTU./21/TITANIUM (6A-4V): 160 KSI FTU MIN.
FINISH:
ALLOY STEEL: CADMIUM PLATE PER AMS-QQ-P-416,TYPE II, CLASS 2 (NO CODE) OR CADMIUM PLATEPER AMS-QQ-P-416, TYPE II, CLASS 2 WITH DULL BLACK CHROMATE TREATMENT (B CODE).CRES: CLEAN AND PASSIVATE IN ACCORDANCE WITH AMS2700, METHOD 1,TYPE 2 OR TYPE 8,CLASS 1(NO CODE) OR CADMIUM PLATE PER AMS-QQ-P-416,TYPE II, CLASS 2 (P CODE).TITANIUM ALLOY: NONE (NO CODE) OR ALUMINUM COAT PER NAS4006 (A CODE) OR ALUMINUMCOAT PER MIL-DTL-83488TYPE IICLASS 3 (C CODE) OR CADMIUM PLATE PERAMS-QQ-P-416,TYPE ICLASS 2PCODE)
CODE:
FIRST DASH NUMBER DESIGNATES DIAMETER AND THREADSECOND DASH NUMBER INDICATES LENGTH IN 0625 INCREMENTS (AS CONVERTED TO THREEDECIMAL PLACES PER ASME Y14.5)INTERMEDIATE OR LONGER LENGTHS MAY BE SPECIFIED BY USE OF WHOLE DASH NUMBERS ONLYUSE OF .25 INCH INCREMENTS IS RECOMMENDED FOR SCREWS OVER 3 INCHES LONG”A”FOLLOWING LAST DASH NUMBER DESIGNATES ALUMINUM COAT PER NAS4006.”B” FOLLOWING LAST DASH NUMBER DESGNATES CADMIUM PLATE WITH DULL BLACK CHROMATETREATMENT.”C” FOLLOWING LAST DASH NUMBER DESIGNATES ALUMINUM COAT PER MIL-DTL-83488, TYPE IICLASS 3.”E”IN LIEU OF FIRST DASH DESIGNATES CRES.”P”FOLLOWING LAST DASH NUMBER DESIGNATES CADMIUM PLATE PER AMS-QQ-P-416,TYPE IICLASS 2.”R” IN LIEU OF SECOND DASH DESIGNATES RECESS PER NASM14191 FOR SIZES 06 THRU 5
INCLUSIVE.
“V”IN LIEU OF FIRST DASH DESIGNATES TITANIUM ALLOY.