5998-01-368-5637 CIRCUIT CARD ASSEMBLY Index 5305-01-368-5639 SCREW,CAP,HEXAGON HEAD

National Stock Number:
5306-01-368-5638

Federal Supply Class:
5306

National Item Identification Number:
013685638

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:
53A-00-193-132386ILLINOIS TOOL WKS INC LINAC DIV
53A-00-193-153711NAVAL SEA SYSTEMS COMMAND


Techincal Specification:
THREAD DIRECTIONRIGHT-HAND
FASTENER LENGTH0.750 INCHES NOMINAL
MATERIALPLASTIC POLYAMIDE LOCKING FEATURE
NICKEL ALLOY 400 FASTENER
THREAD LENGTH0.639 INCHES MINIMUM AND
0.750 INCHES MAXIMUM
HEAD STYLEHEXAGON
THREAD SERIES DESIGNATORUNC
NOMINAL THREAD DIAMETER0.312 INCHES
THREAD QUANTITY PER INCH18
THREAD CLASS2A
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-N-281 CLA FED SPEC SINGLE MATERIAL RESPONSE FASTENER
MINIMUM TENSILE STRENGTH80000 POUNDS PER SQUARE INCH
MINIMUM YIELD STRENGTH40000 POUNDS PER SQUARE INCH
HEAD HEIGHT0.119 INCHES MINIMUM AND
0.211 INCHES MAXIMUM
WIDTH BETWEEN FLATS0.489 INCHES MINIMUM AND
0.500 INCHES MAXIMUM
LOCKING FEATURESTRIP THREADS
FEATURES PROVIDEDCASEHARDENED


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