5306-00-019-6645 BOLT,INTERNALLY RELIEVED BODY Index 5365-00-019-6647 SPACER,RING

National Stock Number:
5306-00-019-6646

Federal Supply Class:
5306

National Item Identification Number:
000196646

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:
65251-08234-10178286SIKORSKY AIRCRAFT CORPORATION


Techincal Specification:
DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER4.750 INCHES NOMINAL FIRST HOLE
CONCENTRIC HOLE DEPTH0.780 INCHES NOMINAL
CONCENTRIC HOLE DIAMETER0.750 INCHES NOMINAL
FASTENER LENGTH5.000 INCHES NOMINAL
HARDNESS RATING51.0 ROCKWELL C MINIMUM AND 54.0 ROCKWELL C MAXIMUM OVERALL
HEAD HEIGHT0.500 INCHES NOMINAL
HEAD STYLEHEXAGON
MATERIALSTEEL COMP 4340 OVERALL
MINIMUM TENSILE STRENGTH260000 POUNDS PER SQUARE INCH
NOMINAL THREAD DIAMETER1.000 INCHES
SHANK UNTHREADED HOLE DIAMETER0.141 INCHES MINIMUM AND 0.151 INCHES MAXIMUM FIRST HOLE
WIDTH BETWEEN FLATS1.427 INCHES MINIMUM AND 1.440 INCHES MAXIMUM
STYLE DESIGNATORCONCENTRIC HOLE UNTHREADED
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONSS8428 DALIC FSCM 78286 MFR REF SINGLE TREATMENT RESPONSE THREADS
SURFACE TREATMENTCADMIUM THREADS
SURFACE TREATMENTNICKEL GRIP
SURFACE TREATMENTNICKEL HEAD
THREAD CLASS3A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH0.790 INCHES MINIMUM
THREAD SERIES DESIGNATORUNJF
THREAD QUANTITY PER INCH12


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