5998-01-123-5625 CIRCUIT CARD ASSEMBLY Index 5305-01-123-5628 SCREW,CAP,SOCKET HEAD

National Stock Number:
5306-01-123-5626

Federal Supply Class:
5306

National Item Identification Number:
011235626

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:
10115768A486GNIMIKKEISTOKESKUS NCB FINLAND
MS21279-2996906MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M


Techincal Specification:
THREAD DIRECTIONRIGHT-HAND
FASTENER LENGTH2.125 INCHES NOMINAL
MATERIALIRON ALLOY 660 OVERALL
THREAD LENGTH0.625 INCHES MINIMUM AND
0.685 INCHES MAXIMUM
HEAD STYLEDOUBLE HEXAGON W/HOLE
THREAD SERIES DESIGNATORUNJF
NOMINAL THREAD DIAMETER0.190 INCHES
THREAD QUANTITY PER INCH32
THREAD CLASS3A
MATERIAL DOCUMENT AND CLASSIFICATIONAMS5732 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MINIMUM TENSILE STRENGTH130000 POUNDS PER SQUARE INCH
MINIMUM YIELD STRENGTH85000 POUNDS PER SQUARE INCH
HEAD HEIGHT0.260 INCHES NOMINAL
WIDTH BETWEEN FLATS0.243 INCHES MINIMUM AND
0.251 INCHES MAXIMUM
EXTENDED WASHER DIAMETER0.375 INCHES NOMINAL
EXTENDED WASHER THICKNESS0.040 INCHES MINIMUM AND
0.050 INCHES MAXIMUM
GRIP LENGTH1.440 INCHES MINIMUM AND
1.500 INCHES MAXIMUM
SURFACE FINISH63.0 MICROINCHES BEARING SURFACE OF HEAD
63.0 MICROINCHES GRIP
32.0 MICROINCHES THREADS
FEATURES PROVIDEDFINISHED HEAD
SPEC/STD CONTROLLING DATA
MANUFACTURERS CODE96906
DEFINITIVE GOVERNMENT SPEC/STD REFERENCEMS21279-29


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