AIA/NAS 1671-2010 pdf download FASTENER, BLIND, INTERNALLY THREADED, EXTERNAL SLEEVE, HIGH TEMPERATURE, PROTRUDING HEAD, SELF-LOCKING
MATERIAL: NUT, SCREW & SLEEVE – A-286 HEAT RESISTANT STEEL, SEE PROCUREMENT SPECIFICATION (CLASS 2)
FINISH: DRIVE NUT – COLOR CODED BLACK.
NUT, SCREW & SLEEVE – PASSIVATED, SEE PROCUREMENT SPECIFICATION.
LUBRICANT: SEE PROCUREMENT SPECIFICATION. GRAPHITE FREE DRY FILM PER MIL-PRF-81329 OR DRY FILM TO CHEMICAL REQUIREMENTS OF AS5272 WITH A TOTAL WEIGHT LOSS (TWL) LESS THAT 1% AND LESS
THAN .1% VOLATILE CONDENSABLE MATERIALS (VCM) WHEN TESTED IN ACCORDANCE WITH NASA SPECIFICATION SP-R-0022 OR ASTM E 595.
CODE: FIRST DASH NUMBER DESIGNATES FASTENER DIAMETER AS SHOWN IN TABLE I., VA 22209
SECOND DASH NUMBER DESIGNATES FASTENER GRIP AS SHOWN IN TABLE II.
ADD “L” BETWEEN FIRST AND SECOND DASH NUMBER TO DESIGNATE FASTENER WITH SELF-LOCKING
PROVISIONS.
ADD “DL” BETWEEN FIRST AND SECOND DASH NUMBER TO DESIGNATE FASTENER WITH SELF-LOCKINGPROVISIONS AND DRIVE NUT FEATURE.ADD “B” AFTER SECOND DASH NUMBER TO DESIGNATE GRAPHITE FREE DRY FILM LUBRICANT PERMIL-PRF-81329./13//15/ADD “U” AFTER SECOND DASH NUMBER TO DESIGNATE DRY FILM LUBRICANT TO THE CHEMICALREQUIREMENTS OF AS5272./14/ /15 CODE AFTER SECOND DASH NUMBER DESIGNATES LUBRICANTS (PARAFFIN WAX CETYL ALCOHOL
ETC.) AS REQUIRED TO MEET PERFORMANCE REQUIREMENTS.
INTERCHANGEABILITY:
THE”DL” CODE FASTENERS (DRIVE NUT) AND “L” CODE FASTENERS (NO DRIVE NUTARE FUNCTIONALLY INTERCHANGEABLE. THERE IS NO DIFFERENCE IN INSTALLEDCONDITION.”DL” PARTS USE EXISTING INSTALLATION TOOLING EXCEPT A NEW HEXNOSE ADAPTOR IS REOUIRED FOR THE -5DL SIZE. THE NOSE ADAPTOR CURRENTLYUSED TO INSTALL NAS1669-4L AND NAS1671-4L HEX HEAD PARTS IS USED TO INSTALL08DL,-3DL AND -4DL SIZES THE -6DL SIZE IS INSTALLED WITH THE SAME NOSEADAPTOR CURRENTLY USED TO INSTALL NAS1669-6L AND NAS1671-6L HEX HEADFASTENERS.THE WRENCH ADAPTORS WHICH ENGAGE AND ROTATE THE SCREWDRIVING FLATS DURING INSTALLATION ARE THE SAME FOR “L” AND DL”CODEFASTENERS. THE “DL” CONFIGURATION IS CONSIDERED THE PREFERRED FASTENERSYSTEM.
AIA/NAS 1671-2010 pdf download
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