5310-00-550-3929 WASHER,RECESSED Index 5305-00-550-3931 SCREW,CAP,HEXAGON HEAD

National Stock Number:
5305-00-550-3930

Federal Supply Class:
5305

National Item Identification Number:
005503930

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:
FFS8581348FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC
MS35309-53896906MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M


Techincal Specification:
FASTENER LENGTH3.860 INCHES MINIMUM AND 4.000 INCHES MAXIMUM
HEAD HEIGHT0.591 INCHES MINIMUM AND 0.627 INCHES MAXIMUM
HEAD STYLEHEXAGON
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-B-637 FED SPEC ALL MATERIAL RESPONSES OVERALL
MATERIALCOPPER ALLOY 462 OVERALL
MINIMUM TENSILE STRENGTH60000 POUNDS PER SQUARE INCH
MINIMUM YIELD STRENGTH27000 POUNDS PER SQUARE INCH
NOMINAL THREAD DIAMETER1.000 INCHES
NONDEFINITIVE SPEC/STD DATA2 TYPE AND 10P STYLE
WIDTH BETWEEN FLATS1.469 INCHES MINIMUM AND 1.500 INCHES MAXIMUM
SURFACE FINISH63.0 MICROINCHES THREADS
THREAD CLASS2A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH2.438 INCHES MINIMUM
THREAD QUANTITY PER INCH8
THREAD SERIES DESIGNATORUNC


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