5305-01-043-0552 SCREW,CAP,HEXAGON HEAD Index 5306-01-043-0554 BOLT,CLOSE TOLERANCE

National Stock Number:
5305-01-043-0553

Federal Supply Class:
5305

National Item Identification Number:
010430553

Description:
SCREW,CAP,HEXAGON HEAD

Detail:
An externally threaded fastener designed for insertion into holes in assembled parts, for mating with a preformed internal thread and for tightening or releasing by torquing the head. The threaded and unthreaded portions are both of the same nominal diameter of 0.190 inch (5 mm) or larger. Head dimensions and sizes of threaded and unthreaded portions shall conform to internationally recognized fastener standards. The thread length being the controlled dimension, the grip length is not specified. A locking feature may be incorporated in the design of the head or threads. Excludes BOLT, MACHINE; BOLT, EXTERNALLY RELIEVED BODY; BOLT, INTERNAL WRENCHING; and SCREW, CAP, SOCKET HEAD.


Manufacturer Information:
6379337-103640LOCKHEED MARTIN CORPORATION


Techincal Specification:
DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER0.870 INCHES MINIMUM AND 0.890 INCHES MAXIMUM FIRST HOLE
FASTENER LENGTH1.430 INCHES MINIMUM AND 1.450 INCHES MAXIMUM
HEAD HEIGHT0.180 INCHES MINIMUM AND 0.200 INCHES MAXIMUM
HEAD STYLEHEXAGON
MATERIALSTEEL COMP 302 OVERALL
NOMINAL THREAD DIAMETER0.190 INCHES
SHANK UNTHREADED HOLE DIAMETER0.062 INCHES MINIMUM AND 0.065 INCHES MAXIMUM FIRST HOLE
WIDTH BETWEEN FLATS0.240 INCHES MINIMUM AND 0.260 INCHES MAXIMUM
SURFACE TREATMENTPASSIVATE OVERALL
THREAD DIRECTIONRIGHT-HAND
THREAD CLASS2A
THREAD LENGTH0.470 INCHES MINIMUM AND 0.490 INCHES MAXIMUM
THREAD SERIES DESIGNATORUNC
THREAD QUANTITY PER INCH32


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