5306-00-043-2169 BOLT,MACHINE Index 5306-00-043-2172 BOLT,MACHINE

National Stock Number:
5306-00-043-2170

Federal Supply Class:
5306

National Item Identification Number:
000432170

Description:
BOLT,MACHINE

Detail:
An externally threaded fastener designed for insertion through holes in assembled parts and normally intended to be tightened or released by torquing a nut. The threaded and unthreaded portions are both of one nominal diameter of 0.190 inch (5 mm) or larger. The head is not designed to be held or driven with an inserted driver or by the thumb and fingers. A locking feature may be incorporated in the design of the head or threads. Head dimensions and sizes of threaded and unthreaded portions shall conform to internationally recognized fastener standards. For items having a grip length portion machined to a tolerance of 0.0015 inch (0.038 mm) or less, BOLT, SHEAR. See also SCREW, CAP, HEXAGON HEAD and SCREW, MACHINE.


Manufacturer Information:
756171-10998897LOCKHEED MARTIN CORP


Techincal Specification:
DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER2.560 INCHES NOMINAL FIRST HOLE
FASTENER LENGTH2.750 INCHES NOMINAL
FEATURES PROVIDEDFINISHED HEAD
GRIP LENGTH2.088 INCHES NOMINAL
HEAD HEIGHT0.247 INCHES MINIMUM AND 0.267 INCHES MAXIMUM
HEAD STYLEHEXAGON
MATERIALSTEEL OVERALL
NOMINAL THREAD DIAMETER1.000 INCHES
SHANK UNTHREADED HOLE DIAMETER0.141 INCHES MINIMUM AND 0.151 INCHES MAXIMUM FIRST HOLE
SPECIAL FEATURESCOAT GRIP W/CORROSION PREVENTIVE COMPOUND PER MIL-C-16173 GRADE 3
WIDTH BETWEEN FLATS1.428 INCHES MINIMUM AND 1.437 INCHES MAXIMUM
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION04-2056 TYPE 1,FSCM 98897 MFR REF SINGLE TREATMENT RESPONSE HEAD
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION04-2056 TYPE 1,FSCM 98897 MFR REF SINGLE TREATMENT RESPONSE THREADS
SURFACE TREATMENTCADMIUM HEAD
SURFACE TREATMENTCADMIUM THREADS
THREAD CLASS3A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH0.662 INCHES MINIMUM
THREAD QUANTITY PER INCH12
THREAD SERIES DESIGNATORUNF


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