Part Number: AN174CH13

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CONDITION:
NS
AERONAUTICAL STANDARDS GROUP DEPT OF NAVY AND AIR FORCE88044
THREAD CLASS3A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH0.468 INCHES MINIMUM
FASTENER LENGTH1.406 INCHES NOMINAL
HEAD STYLEHEXAGON
HEAD HEIGHT0.140 INCHES MINIMUM AND 0.172 INCHES MAXIMUM
WIDTH BETWEEN FLATS0.428 INCHES MINIMUM AND 0.440 INCHES MAXIMUM
GRIP DIAMETER0.2487 INCHES MINIMUM AND 0.2492 INCHES MAXIMUM
SHANK UNTHREADED HOLE DIAMETER0.076 INCHES MAXIMUM FIRST HOLE
NOMINAL THREAD DIAMETER0.250 INCHES
GRIP LENGTH0.938 INCHES NOMINAL
THREAD QUANTITY PER INCH28
MINIMUM TENSILE STRENGTH125000 POUNDS PER SQUARE INCH
HARDNESS RATING26.0 ROCKWELL C MINIMUM OVERALL AND 32.0 ROCKWELL C MAXIMUM OVERALL
DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER1.250 INCHES NOMINAL FIRST HOLE
SURFACE FINISH63.0 MICROINCHES BEARING SURFACE OF HEAD
MATERIALSTEEL CORROSION RESISTING OVERALL
SURFACE TREATMENTPASSIVATE OVERALL
THREAD SERIES DESIGNATORUNF
THREAD CLASS3A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH0.468 INCHES MINIMUM
FASTENER LENGTH1.406 INCHES NOMINAL
HEAD STYLEHEXAGON
HEAD HEIGHT0.140 INCHES MINIMUM AND 0.172 INCHES MAXIMUM
WIDTH BETWEEN FLATS0.428 INCHES MINIMUM AND 0.440 INCHES MAXIMUM
GRIP DIAMETER0.2487 INCHES MINIMUM AND 0.2492 INCHES MAXIMUM
SHANK UNTHREADED HOLE DIAMETER0.076 INCHES MAXIMUM FIRST HOLE
NOMINAL THREAD DIAMETER0.250 INCHES
GRIP LENGTH0.938 INCHES NOMINAL
THREAD QUANTITY PER INCH28
MINIMUM TENSILE STRENGTH125000 POUNDS PER SQUARE INCH
HARDNESS RATING26.0 ROCKWELL C MINIMUM OVERALL AND 32.0 ROCKWELL C MAXIMUM OVERALL
DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER1.250 INCHES NOMINAL FIRST HOLE
SURFACE FINISH63.0 MICROINCHES BEARING SURFACE OF HEAD
MATERIALSTEEL CORROSION RESISTING OVERALL
SURFACE TREATMENTPASSIVATE OVERALL
THREAD SERIES DESIGNATORUNF