AIA/NAS 5319-2006 pdf download SCREW, SHEAR, 100 DEG FLUSH HEAD, CLOSE TOLERANCE, NAS1800 SIX LOBE RECESS, 95 KSI FSU
MATERIAL:
CRES – A286 (UNS S66286) CONFORMING TO THE CHEMISTRY OF AMS 5731，AMS 5732,AMS 5737 OR AMS 5853.
TITANIUM ALLOY – 6AL-4V (UNS R56400) PER AMS 4928 OR AMS 4967
HEAT TREAT:
DEVELOP BASIC MATERIAL PROPERTIES AS FOLLOWS，WITH CONTROLS PER AMS-H-6875OR AMS2759 FOR CRES AND AMS-H-81200 OR AMS 2801 FOR TITANIUM
CRES – 160 – 190 KSI FTU PRECIPITATION HARDENING PER AMS 5853 OR AMS 2759.(12)
TITANIUM – 160 KSI FTU MIN PER AMS-H-81200 OR AM 2801.
FINISH:
CRES PASSTVATE IN ACCORDANCE WITH AMS 2700,METHOD 1TYPE 2 OR TYPE 8CLASS 1OR CADMIUM PLATE PER AMS-OQ-P-416，TYPE ICLASS 2. POST PLATE HYDROGENEMBRITTLEMENT BAKING AND TESTING PER AMS-QQ-P-416 ARE NOT REQUIRED
TITANIUM ALLOY NONE OR ALUMINUM PIGMENTED COATING PER NAS4006 WITH CETYLALCOHOL LUBRICANT PER MIL-L-87132，TYPE IIIGRADE B
CODE:
BASIC PART NUMBER = SCREW, 100 DEG HEAD, SIX LOBE RECESS.
MATERIAL CODE AFTER BASIC PART NUMBER:
ADD “E” FOR CRES.
ADD “V” FOR TITANIUM.
DIAMETER DASH NUMBER DESIGNATES DIAMETER AND THREAD FINISH CODE AFTER DIAMETER DASH NUMBER:
ADD “-” FOR PASSIVATION (CRES ONLY).
ADD “-” FOR BARE TITANIUM.
ADD “A” FOR ALUMINUM PIGMENTED COATING (TITANIUM ONLY).
ADD “P” FOR CADMIUM PLATING (CRES ONLY).
GRIP DASH NUMBER DESIGNATES GRIP LENGTH IN .0625 INCREMENTS ( TABLE III).
EXAMPLES OF PART NUMBERS:
NAS5319E3-10 = SCREW, .1900-32 THREAD, PASSIVATED CRES, .625 GRIP.
NAS5319V5-15 = SCREW, .3125-24 THREAD, TITANIUM ALLOY, .938 GRIP.
NAS5319V5A15 = SCREW, .3125-24 THREAD, ALUMINUM PIGMENTED COATED TITANIUM, .938 GRIP.
NAS5319E8P10 = SCREW, .5000-20 THREAD, CADMIUM PLATED CRES, .625 GRIP.