AIA/NAS 1731-2012 pdf download NUT, BLIND, SERRATED HEAD, SELF-LOCKING, 450 °F
MATERIAL:
CRES,TYPE 304 OR TYPE 305 PER QQS-763 AMS-QQ-S-763CONDITION A.
FINISH:
PASSIVATE PER AMS2700,METHOD 1.CLASS 4.CADMIUM PLATE PER AMS-QQ-P-416,TYPE I, CLASS 2.(WHEN SPECIFIED)./10/
LUBRICATION:
DRY FILM PER MIL-N-25027 NASM25027 ON THREADS ONLY (WHEN SPECIFIED)
CODE:
FIRST DASH NUMBER INDICATES THREAD SIZEADD“L”BETWEEN DASH NUMBERS OR DRY FILM LUBRICANTSECOND DASH NUMBER INDICATES GRIP RANGE.ADD“P”AFTER SECOND DASH NUMBER FOR CADMIUM PLATE
EXAMPLES OF PART NUMBER:
NAS1731-4-6.2500-28 NUT，.240-.280 GRIP RANGEPASSIVATED”.2500-28 NUT，.240-.280 GRIP RANGE,PASSIVATED,THREADS LUBRICATEDNAS1731-4L6lNAS1731-4-6P2500-28 NUT..240-.280 GRIP RANGE,PASSIVATED，CADMIUM PLATEDNAS1731-4L6P.2500-28 NUT，.240-.280 GRIP RANGEPASSIVATEDTHREADS LUBRICATED AND=
OUTSIDE SURFACE CADMIUM PLATED
NOTES:
CONCENTRICITY: ALL DIAMETERS TO THE NUT CENTERLINE WIHIN .005 FIM.
SERRATION SHALL BE SHARP AND CLEAN FOR THE FULL LENGTH OF THE“H” DIMENSION.
SERRATION DEPTH SHALL BE TO THE OUTSIDE DIAMETER OF THE NUT “OD” WITHIN .002 TO -.006.
TORQUE OUT AND PUSH OUT VALUES LISTED ARE APPLICABLE WHEN NUTS ARE INSTALLED INSOLUTION HEAT TREATED AND ARTIFICIALLY AGED 2000 8 7000 SERIES ALUMINUM ALLOYS.
SURFACE TEXTURE: ALL NON-THREADED SURFACE TEXTURE SHALL NOT EXCEED 125 MICROINCHES RaPER ASME B46.1.MINOR THREAD MARKINGS ON ID OF NU PERMISSIBLE.
FOR NUT SIZES “04”“06”AND “08” STAMP SIZE DASH NUMBERGRIP DASH NUMBER ANDMANUFACTURER TRADEMARK.

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