AIA/NAS 5318-2006 pdf download BOLT, SHEAR, FLAT PAN HEAD, CLOSE TOLERANCE, LONG THREAD, NON-LOCKING AND SELF-LOCKING, 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 LOCKING ELEMENT – POLYETHYLENE TEREPHTHALATE (POLYESTER) PER AMS 3612 OR POLYAMIDE-IMIDE PER AMS 3670, COLOR OPTIONAL, 400 DEG MAX, LOCKING TORQUE IS APPLICABLE FOR 5 TORQUE CYCLES.
HEAT TREAT: DEVELOP BASIC MATERIAL PROPERTIES AS FOLLOWS, WITH CONTROLS PER AMS-H-6875 OR 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 AMS 2801.
FINISH:
CRES – PASSIVATE IN ACCORDANCE WITH AMS 2700, METHOD 1, TYPE 2 OR TYPE 8, CLASS 1 OR CADMIUM PLATE PER AMS-QQ-P-416, TYPE II, CLASS 2. POST PLATE HYDROGEN EMBRITTLEMENT BAKING AND TESTING PER AMS-QQ-P-416 ARE NOT REQUIRED.
TITANIUM ALLOY – NONE OR ALUMINUM PIGMENTED COATING PER NAS4006 WITH CETYL ALCOHOL LUBRICANT PER MIL-L-87132, TYPE III, GRADE B.
CODE:
BASIC PART NUMBER = BOLT, FLAT PAN HEAD, NAS1800 SIX LOBE RECESS MATERIAL CODE AFTER BASIC NUMER:
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 INCH INCREMENTS (SEE TABLE III).
TYPE CODE AFTER GRIP DASH NUMBER:
ADD “J” FOR POLYETHYLENE TEREPHTHALATE (POLYESTER) OR POLYAMIDE-IMIDE LOCKING ELEMENT. AVAILABLE IN PATCH FORM ONLY.
NO CODE = NONLOCKING THREAD
EXAMPLES OF PART NUMBERS:
NAS5318E3-10 = BOLT, .1900-32 THREAD, PASSIVATED CRES, .625 GRIP, NONLOCKING.
NAS5318V5-15 = BOLT, .3125-24 THREAD, TITANIUM ALLOY, .938 GRIP, NONLOCKING.
NAS5318V5A15 = BOLT, .3125-24 THREAD, ALUMINUM PIGMENTED COATED TITANIUM, .938 GRIP, NONLOCKING.
NAS5318E3P10 = BOLT, .1900-32 THREAD, CADMIUM PLATED CRES, .625 GRIP, NONLOCKING.
NAS5318E3P10J = BOLT, .1900-32 THREAD, CADMIUM PLATED CRES, .625 GRIP, SELF-LOCKING.
NOTES:
(1) CONCENTRICITY: “A” AND “ØD” WITHIN “X” VALUES FIM. “ØD” AND THREAD PITCH DIAMETER WITHIN “Y” VALUES FIM. RECESS TO “ØD” WITHIN .016 FIM THRU .2500 SIZE, WITHIN .024 FIM ABOVE .2500 SIZE.
(2) SHANK STRAIGHTNESS: WITHIN “Z” VALUES FIM PER INCH OF LENGTH.
(3) RECESS GAGING IN ACCORDANCE WITH NAS1800.