AIA/NAS 1750-2010 pdf download FASTENER, BLIND, INTERNALLY THREADED, EXTERNAL SLEEVE, GENERAL PURPOSE, FLUSH HEAD, SELF-LOCKING, 1 /64” OVERSIZE
FINISH:
LUBRICANT:
CODE:
DRIVE NUT – COLOR CODED GOLDNUT,SCREW & SLEEVE – CADMIUM PLATE, SEE PROCUREMENT SPECIFICATION.
SEE PROCUREMENT SPECIFICATION
FIRST DASH NUMBER DESIGNATES FASTENER DIAMETER AS SHOWN IN TABLE SECOND DASH NUMBER DESIGNATES FASTENER GRIP AS SHOWN IN TABLE IIADD “L” BETWEEN FIRST AND SECOND DASH NUMBER TO DESIGNATE FASTENE WITH SELF-LOCKINGPROVISIONSADD DL” BETWEEN FIRST AND SECOND DASH NUMBER TO DESIGNATE FASTENER WITH SELF-LOCKING
PROVISIONS AND DRIVE NUT FEATURE.
INTERCHANGEABILITY:
THEDL” CODE FASTENERS (DRIVE NUT) AND “L” CODE FASTENERS (NO DRIVE NUT) AREFUNCTIONALLY INTERCHANGEABLETHERE IS NO DIFFERENCE IN INSTALLED CONDITION.DL” PARTS USE EXTSTING INSTALLATION TOOLING EXCEPT A NEW HEX NOSE ADAPTOR ISREOUIRED FOR THE -5DL SIZE THE NOSE ADAPTOR CURRENTLY USED TO INSTALLNAS1669-4L AND NAS1671-4L HEX HEAD PARTS IS USED TO INSTALL -08DL-3DL AND -4DLSIZES,THE -6DL SIZE IS INSTALLED WITH THE SAME NOSE ADAPTOR CURRENTLY USED TOINSTALL NAS1669-L AND NAS1671-6L HEX HEAD FASTENERSTHE WRENCH ADAPTORSWHICH ENGAGE AND ROTATE THE SCREW DRIVING FLATS DURING INSTALLATION ARE THESAME FOR “L” AND DL” CODE FASTENERSTHE DL” CONFIGURATION IS CONSIDERED THEPREFERRED FASTENER SYSTEM
EXAMPLE:
NAS1750-3L5 =GENERAL PURPOSE BLIND FASTENER,FLUSH HEAD WITH A SHANK DIAMETER OF 2140AND GRIP OF 282 -344 AND SELF-LOCKING FEATURE,1/64 OVERSIZE
NAS1750-4DL6 = GENERAL PURPOSE BLIND FASTENER FLUSH HEAD WITH A SHANK DIAMETER OF .2750AND GRIP OF 345- 406SELF-LOCKING FEATURE AND DRIVE NUT FEATURE1/64OVERSIZE.
NOTES:
“G”IS THE MEAN DIMENSION TO THE NU NOSE ANGLE INTERSECTIONTHIS INTERSECTIONLOCATION MAY VARY AROUND THE PERIPHERY DUE TO ECCENTRICITY.
PARTS SHALL BE FREE OF ALL LOOSE OR HANGING BURRS
OUTSIDE DIAMETER OF HEAD OF SCREW AND OUTSIDE DIAMETER OF SLEEVE SHALL NOT BEGREATER THAN MAXIMUM”OD”

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