1680-00-788-1642 BELL CRANK Index 1680-00-788-1644 BELL CRANK

National Stock Number:
5306-00-788-1643

Federal Supply Class:
5306

National Item Identification Number:
007881643

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:
32-62052-376301THE BOEING COMPANY


Techincal Specification:
DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER3.860 INCHES NOMINAL FIRST HOLE
CONCENTRIC HOLE DEPTH2.880 INCHES NOMINAL
CONCENTRIC HOLE DIAMETER0.750 INCHES NOMINAL
FASTENER LENGTH4.070 INCHES NOMINAL
HEAD DIAMETER1.625 INCHES NOMINAL
HEAD HEIGHT0.310 INCHES NOMINAL
HEAD STYLEROUND W/WRENCH FLATS
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-S-5000 COND C MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIALSTEEL OVERALL
MINIMUM TENSILE STRENGTH180000 POUNDS PER SQUARE INCH
NOMINAL THREAD DIAMETER0.562 INCHES
SHOULDER DIAMETER1.249 INCHES NOMINAL
SHOULDER LENGTH3.100 INCHES NOMINAL
SHANK UNTHREADED HOLE DIAMETER0.140 INCHES MINIMUM AND 0.147 INCHES MAXIMUM FIRST HOLE
WIDTH BETWEEN FLATS1.428 INCHES MINIMUM AND 1.441 INCHES MAXIMUM
STYLE DESIGNATORCONCENTRIC HOLE UNTHREADED
THREAD CLASS3A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH0.828 INCHES MINIMUM AND 0.843 INCHES MAXIMUM
THREAD SERIES DESIGNATORUNF
THREAD QUANTITY PER INCH18


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