5305-01-131-5477 SCREW,TAPPING Index 5306-01-131-5479 BOLT,SHEAR

National Stock Number:
5306-01-131-5478

Federal Supply Class:
5306

National Item Identification Number:
011315478

Description:
BOLT,INTERNALLY RELIEVED BODY

Detail:
An externally threaded fastener whose external threaded portion is of one nominal diameter. It has a concentric hole along the longitudinal centerline which may extend a part or the full length of the bolt. The concentric hole along the centerline may be counterbored and/or internally threaded at the head end or the bolt end. The head is designed to be held or driven by an external and/or internal driver. For items having a hole(s) perpendicular to the axis which meet the concentric hole along the longitudinal centerline, see BOLT, FLUID PASSAGE.


Manufacturer Information:
74A425030-200176301THE BOEING COMPANY


Techincal Specification:
CONCENTRIC HOLE DEPTH2.355 INCHES NOMINAL
CONCENTRIC HOLE DIAMETER0.312 INCHES NOMINAL
DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER2.900 INCHES NOMINAL FIRST HOLE
FASTENER LENGTH3.050 INCHES NOMINAL
HEAD HEIGHT0.125 INCHES NOMINAL
HEAD DIAMETER1.125 INCHES NOMINAL
HEAD STYLEROUND W/WRENCH FLATS CHAMFERED
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 6414 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIALSTEEL COMP 4340 OVERALL
MINIMUM TENSILE STRENGTH180000 POUNDS PER SQUARE INCH
NOMINAL THREAD DIAMETER0.625 INCHES
SHANK UNTHREADED HOLE DIAMETER0.141 INCHES MINIMUM AND 0.146 INCHES MAXIMUM FIRST HOLE
SHOULDER DIAMETER0.749 INCHES MINIMUM AND 0.750 INCHES MAXIMUM
SHOULDER LENGTH2.380 INCHES NOMINAL
STYLE DESIGNATORCONCENTRIC HOLE UNTHREADED
WIDTH BETWEEN FLATS0.928 INCHES MINIMUM AND 0.940 INCHES MAXIMUM
THREAD DIRECTIONRIGHT-HAND
THREAD CLASS3A
THREAD SERIES DESIGNATORUNJF
THREAD QUANTITY PER INCH18


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