5306-00-480-0251 BOLT,MACHINE Index 1560-00-480-0256 DUCT ASSEMBLY,AIR CONDITIONING-HEATING,AIRCRAFT

National Stock Number:
5306-00-480-0255

Federal Supply Class:
5306

National Item Identification Number:
004800255

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:
849529107482GENERAL ELECTRIC COMPANY
849529124446GENERAL ELECTRIC COMPANY


Techincal Specification:
DISTANCE FROM CENTERLINE TO FLAT0.135 INCHES MINIMUM AND 0.145 INCHES MAXIMUM
FASTENER LENGTH1.000 INCHES NOMINAL
FEATURES PROVIDEDFINISHED HEAD
GRIP LENGTH0.514 INCHES NOMINAL
HEAD DIAMETER0.500 INCHES NOMINAL
HEAD HEIGHT0.156 INCHES NOMINAL
HEAD STYLEDEE CHAMFER
MATERIAL DOCUMENT AND CLASSIFICATIONB5F5B,FSCM 07482 MFR REF SINGLE MATERIAL RESPONSE OVERALL
MATERIALSTEEL OVERALL
NOMINAL THREAD DIAMETER0.250 INCHES
SURFACE FINISH4.0 MICROINCHES OVERALL
SURFACE TREATMENTCADMIUM OVERALL
THREAD CLASS3A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH0.500 INCHES MINIMUM
THREAD QUANTITY PER INCH28
THREAD SERIES DESIGNATORUNF


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