5306-00-693-6660 BOLT,INTERNALLY RELIEVED BODY Index 5306-00-693-6666 BOLT,MACHINE

National Stock Number:
5306-00-693-6661

Federal Supply Class:
5306

National Item Identification Number:
006936661

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:
76100198897LOCKHEED MARTIN CORP


Techincal Specification:
DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER2.422 INCHES MINIMUM AND 2.454 INCHES MAXIMUM FIRST HOLE
CONCENTRIC HOLE DIAMETER0.249 INCHES MINIMUM AND 0.255 INCHES MAXIMUM
FASTENER LENGTH0.625 INCHES MINIMUM AND 0.672 INCHES MAXIMUM
HEAD HEIGHT0.250 INCHES NOMINAL
HEAD STYLEHEXAGON
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-S-6049 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIALSTEEL COMP 8740 OVERALL
MINIMUM TENSILE STRENGTH190000 POUNDS PER SQUARE INCH
NOMINAL THREAD DIAMETER0.875 INCHES
SHANK UNTHREADED HOLE DIAMETER0.139 INCHES MINIMUM AND 0.145 INCHES MAXIMUM FIRST HOLE
WIDTH BETWEEN FLATS1.375 INCHES NOMINAL
STYLE DESIGNATORCONCENTRIC HOLE UNTHREADED
SURFACE TREATMENTCHROMIUM OVERALL
THREAD CLASS3A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH0.531 INCHES MINIMUM AND 0.578 INCHES MAXIMUM
THREAD SERIES DESIGNATORUNF
THREAD QUANTITY PER INCH14


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