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National Stock Number:
5306-01-174-6520
Federal Supply Class:
5306
National Item Identification Number:
011746520
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.
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Manufacturer Information:
| AS43312 | K7766 | BRITISH STANDARDS INSTITUTION | | AS43312 | U1653 | SOCIETY OF BRITISH AEROSPACE COMPANI LTD SBAC |
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Techincal Specification:
| EXTENDED WASHER THICKNESS | 0.060 INCHES NOMINAL | | EXTENDED WASHER DIAMETER | 0.438 INCHES NOMINAL | | FASTENER LENGTH | 0.750 INCHES NOMINAL | | HEAD HEIGHT | 0.303 INCHES NOMINAL | | HEAD STYLE | DOUBLE HEXAGON W/HOLE | | HOLE CONFIGURATION STYLE | DOUBLE HEXAGON LONGITUDINAL HOLE | | HOLE DIAMETER | 0.079 INCHES MINIMUM AND 0.087 INCHES MAXIMUM | | HOLE QUANTITY | 4 | | HOLE TYPE | DRILLED | | MATERIAL DOCUMENT AND CLASSIFICATION | DTD5066,FSCM K7766 MFR REF SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | STEEL OVERALL | | NOMINAL THREAD DIAMETER | 0.250 INCHES | | WIDTH BETWEEN FLATS | 0.312 INCHES NOMINAL | | SURFACE FINISH | 32.0 MICROINCHES THREADS | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | DTD939,FSCM K7766 MFR REF SINGLE TREATMENT RESPONSE THREADS | | SURFACE TREATMENT | SILVER THREADS | | THREAD DIRECTION | RIGHT-HAND | | THREAD CLASS | 3A | | THREAD LENGTH | 0.651 INCHES MINIMUM AND 0.671 INCHES MAXIMUM | | THREAD SERIES DESIGNATOR | UNJF | | THREAD QUANTITY PER INCH | 28 |
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