Part Number: LD111-0057-0306

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CONDITION:
NS
BOEING COMPANY, THE43999
THREAD CLASS3A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH0.252 INCHES MINIMUM AND 0.364 INCHES MAXIMUM
FASTENER LENGTH0.699 INCHES MINIMUM AND 0.729 INCHES MAXIMUM
HEAD STYLEHEXAGON
HEAD HEIGHT0.172 INCHES MINIMUM AND 0.203 INCHES MAXIMUM
WIDTH BETWEEN FLATS0.367 INCHES MINIMUM AND 0.376 INCHES MAXIMUM
INTERNAL DRIVE STYLEHEXAGON
NOMINAL THREAD DIAMETER0.190 INCHES
WIDTH ACROSS FLATS0.156 INCHES MINIMUM AND 0.158 INCHES MAXIMUM
THREAD QUANTITY PER INCH32
MINIMUM TENSILE STRENGTH140000 POUNDS PER SQUARE INCH
HARDNESS RATING24.0 ROCKWELL C MINIMUM OVERALL AND 35.0 ROCKWELL C MAXIMUM OVERALL
MINIMUM YIELD STRENGTH85000 POUNDS PER SQUARE INCH
SURFACE FINISH32.0 MICROINCHES BEARING SURFACE OF HEAD
SURFACE FINISH32.0 MICROINCHES GRIP
SURFACE FINISH32.0 MICROINCHES THREADS
MATERIALIRON ALLOY 660 OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONAMS5731 ASSN STD SINGLE MATERIAL RESPONSE OVERALL OR AMS5732 ASSN STD SINGLE MATERIAL RESPONSE OVERALL OR AMS5737 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
SURFACE TREATMENTPASSIVATE OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
THREAD SERIES DESIGNATORUNJF
An externally threaded fastener whose threaded portion is of one nominal diameter. The head has an internal socket or multiple spline for use with an inserted driver. A locking feature may be incorporated in the design of the head or threads. Excludes items with bevel (conical) heads. See BOLT, INTERNAL WRENCHING. Excludes SCREW, SHOULDER; and SCREW, MACHINE.