AIA/NAS 5321-2006 pdf download BOLT, SHEAR, 100 DEGREE FLUSH HEAD, CLOSE TOLERANCE, NAS1800 SIX LOBE RECESS, 108 KSI FSU
HEAT TREAT:
DEVELOP BASIC MATERIAL PROPERTIES AS FOLLOWS,WITH CONTROLS PER AMS-H-6875OR AMS 2759.
CRES – 180 – 210 KSI FTU，108 KSI FSU AT ROOM TEMPERATURE. PRECIPITATIONHARDENING PER AMS 5853 OR AMS 2759.(12)
FINISH:
CODE:
CRES – PASSIVATE IN ACCORDANCE WITH AMS 2700, METHOD 1,TYPE 2 OR TYPE 8CLASS1 OR CADMIUM PLATE PER AMS-QQ-P-416,TYPE ICLASS 2. POST PLATEHYDROGEN EMBRITTLEMENT BAKING AND TESTING PER AMS-QQ-P-416 ARE NOTREQUIRED.
BASIC PART NUMBER = BOLT，100 DEGREE FLUSH HEADSIX LOBE RECESSMATERIAL CODE AFTER BASIC NUMBER:
ADD“E”FOR CRES.
DIAMETER DASH NUMBER DESIGNATES DIAMETER AND THREADFINISH CODE AFTER DIAMETER DASH NUMBER:ADD“_”FOR PASSIVATION.ADD”P”FOR CADMIUM PLATING.GRIP DASH NUMBER DESIGNATES GRIP IN .0625 INCREMENTS(SEE TABLE III)TYPECODE AFTER GRIP DASH NUMBER:NO CODE = UNDRILLEDADD“D”FOR DRILLED THREAD
EXAMPLES OF PART NUMBERS:
NAS5321E3-10
BOLT，.1900-32 THREAD，PASSIVATED CRES，625 GRIP”
NAS5321E3P10BOLT，.1900-32 THREAD，CADMIUM PLATED CRES，.625 GRIP.”
NAS5321E6-19DBOLT，.3750-24 THREAD，PASSIVATED CRES，1188 GRIP，DRILLED”SHANK.
NOTES:
(1) CONCENTRICITY: CONICAL SURFACE OF HEAD TO OD WITHIN .005 FIM,”OD” TO THREAD PITCHDIAMETER WITHIN “y” VALUES FIM RECESS TO OD WITHIN 016 FIM THRU .2500 SIZE: WITHIN024 FIM ABOVE 2500 SIZE
(2) SHANK STRAIGHTNESS: WITHIN “Z”VALUES FIM PER INCH OF LENGTH.
RECESS GAGING IN ACCORDANCE WITH NAS9800.3
(4) GRIP LENGTH: FROM TOP OF HEAD TO END OF FULL CYLINDRICAL PORTION OF SHANK.
(5) BOLT RECESSES SHALL MEET THE TORQUE TEST REQUIREMENTS SPECIFIED HEREIN WHEN TESTED INACCORDANCE WITH THE APPLICABLE PROCUREMENT SPECIFICATION.
(6) BOLTS SHALL BE FREE FROM BURRS AND SHARP EDGES

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