4920-01-469-6238 FIXTURE,AIRCRAFT MAINTENANCE Index 1560-01-469-6240 COVER,ACCESS,AIRCRAFT

National Stock Number:
5306-01-469-6239

Federal Supply Class:
5306

National Item Identification Number:
014696239

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:
623101C225IFASTGROUPE 2004 L P
91257A75139428MCMASTER-CARR SUPPLY CO
91257A75188044AERONAUTICAL STANDARDS GROUP DEPT OF NAVY AND AIR FORCE


Techincal Specification:
THREAD DIRECTIONRIGHT-HAND
FASTENER LENGTH3.000 INCHES NOMINAL
MATERIALSTEEL OVERALL
THREAD LENGTH1.250 INCHES NOMINAL
HEAD STYLEHEXAGON
THREAD SERIES DESIGNATORUNF
NOMINAL THREAD DIAMETER0.500 INCHES
THREAD QUANTITY PER INCH20
THREAD CLASS2A
SURFACE TREATMENTZINC OVERALL
COLORGOLD OVERALL
MINIMUM TENSILE STRENGTH150000 POUNDS PER SQUARE INCH
HEAD HEIGHT0.312 INCHES NOMINAL
WIDTH BETWEEN FLATS0.750 INCHES NOMINAL


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