AIA/NAS 144-158-2008 pdf download BOLT, INTERNAL WRENCHING, STEEL, .2500-28 THRU 1.1250-12
160,000 TO 180，000 PSI TENSILE STRENGTH IN ACCORDANCE WITH THEPROCUREMENT SPECIFICATION.
CADMIUM PLATING PER AMS-QQ-P-416，TYPE II，CLASS 2.
ADD “DH” TO THE PART NUMBER TO DESIGNATE DRILLED HEADADD “A” TO THE PART NUMBER TO DESIGNATE DRILLED SHANK.FOR SUFFIX DASH NUMBER TO DESIGNATE GRIP AND LENGTH，SEE TABLEII.
NAS144-25NAS144DH-25NAS144ADH-25
.2500-28 BOLT，1.5625INCHES LONGUNDRILLED.l1.56252500-28 BOLT,INCHES LONGDRILLED HEADl2500-28 BOLT，1.5625INCHES LONG，DRILLED HEADAND SHANK.
PROCUREMENTSPECIFICATION:NAS4002 EXCEPT:a) PERIPHERY OF TAPERED HEAD AND SOCKET RECESS MAY BE MACHINED.”R” ON HEAD OR POINT END OF BOLT INDICATES THREADS HAVE BEENblROLLED AFTER HEAT TREAT.TRACES OF PARTIAL DECARBURIZATION MAY APPEAR IN A LAYER NOT TOC1EXCEED:.002 IN DEPTH FOR NOM DIAMETERS.2500 THRU .5000..003 IN DEPTH FOR NOM DIAMETERS.5625 THRU 1.0000..004 IN DEPTH FOR NOM DIAMETERS1.1250.d) COLD WORK OF HEAD TO SHANK FILLET RADIUS NOT REQUIRED.e) FATIGUE CAPABILITIES AND TESTS NOT REQUIRED.
NOTES:
SURFACE ROUGHNESS: SHANK，HEAD BEARING SURFACE AND THREADS 32 MICROINCHESRa，FILLET RADIUS 20 MICROINCHES Ra ALL OTHER SURFACES 125 MICROINCHES RaPER ASME B46.1.
MAGNETIC PARTICLE INSPECTION: 100 PER ASTM E 1444.TOLERANCES UNLESS OTHERWISE SPECIFIED: DECIMALS +/- .010，0
DIMENSIONS IN INCHES.10
APPLICABLE WASHERS，MS20002 AND NAS1587
REMOVE ALL BURRS AND SHARP EDGES.00
ALL DIMENSIONS APPLY AFTER FINISH UNLESS OTHERWISE SPECIFIED.(ODIMENSIONING AND TOLERANCING PER ANSI Y14,5M-1982，10
THIS STANDARD TAKES PRECEDENCE OVER DOCUMENTS REFERENCED HEREIN.(0REFERENCED DOCUMENTS SHALL BE THE ISSUE IN EFFECT ON DATE OF INVITATIONSFOR BID.

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