AIA/NAS 9922-2009 pdf download SCREW, CAP, TENSION, INTERNAL WRENCHING, UNDRILLED AND DRILLED, LOCKING AND NON-LOCKING, 6AL-4V TITANIUM, 1 60 KSI FTU
CODE:
SEE“EXAMPLE OF PART NUMBER”
FIRST DASH NUMBER DESIGNATES DIAMETER AND THREAD SIZESECOND DASH NUMBER DESIGNATES LENGTH IN .0625 INCH INCREMENTS.
LOCKING VERSUS NON-LOCKING:DASH (-) AFTER THE FIRST DASH NUMBER DESIGNATES NON-LOCKING SCREW.B” AFTER FIRST DASH NUMBER DESIGNATES LOCKING ELEMENT TYPE P (PATCH), 250F MAXAPPLICATION.
“G” AFTER FIRST DASH NUMBER DESIGNATES LOCKING ELEMENT TYPE P (PATCH) 400F MAXAPPLICATION.
“K”AFTER FIRST DASH NUMBER DESIGNATES LOCKING ELEMENT TYPE N (PELLET) OFPOLYIMIDE RESIN MATERIAL PER AMS 3644,CLASS 1, PRODUCT FORM P.USE ONLY FORHIGH TEMPERATURE APPLICATIONS.UP TO 550°F.
“L”AFTER FIRST DASH NUMBER DESIGNATES LOCKING ELEMENT TYPE L (STRIP),250°F MAXAPPLICATION.
“N”AFTER FIRST DASH NUMBER DESIGNATES LOCKING ELEMENT TYPE N (PELLET), 250°F MAXAPPLICATION.
LUBRICATION AND COATING:
“A”AFTER SECOND DASH NUMBER DESIGNATES ALUMINUM PIGMENTED COATING PERNAS4006.
“F”AFTER SECOND DASH NUMBER DESIGNATES BURNISHED DRY FILM LUBRICANT ON THETHREADS. SHANKAND UNDER HEAD OF SCREW PER AS1701 CLASS VI OVER COATING ONADJACENT SURFACES OR ENTIRE SCREW IS ACCEPTABLE BUT NOT REQUIRED.BURNISHING REQUIREMENT SHALL BE ACCOMPLISHED IN ACCORDANCE WITH THESUPPLIER’S APPROVED PROCEDURE. THERE SHALL BE NO LOOSE LUBRICANT OR POWDERRESIDUE AFTER THE BURNISHING PROCESS.
“J”AFTER SECOND DASH NUMBER DESIGNATES BURNISHED DRY FILM LUBRICANT ON ALLSURFACES EXCEPT SIDE AND TOP OF SCREW HEAD PER AS1701 CLASS VI.BURNISHING REQUIREMENT SHALL BE ACCOMPLISHED IN ACCORDANCE WITH THESUPPLIER’S APPROVED PROCEDURE. THERE SHALL BE NO LOOSE LUBRICANT OR POWDERRESIDUE AFTER THE BURNISHING PROCESS.
SCREWS WITH CODE“J”SHALL HAVE A“K”FACTOR OF .09 02DETERMINE TORQUE-TENSION DATA USING NASM1312-15 EXCEPT TORQUE SHALL BEAPPLIED AT A RATE OF 0.5 RPM OR LESS OR INCREMENTS OF 10 IN-LBSCALCULATE“K”(NUT) FACTOR OR TORQUE COEFFICIENT USING ISO 16047.K – T/DF: WHERE T = TORQUE,IN-LBS: D = NOMINAL DIAMETER,INCH: F = FORCEPOUNDS.
“T”AFTER SECOND DASH NUMBER DESIGNATES ANODIC UNDERCOATING PER AMS2488 TYPE2. RECOMMENDED AS AN ANTIGALLING SURFACE TREATMENT OR IN COMBINATION WITHDRY FILM LUBE.

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