5306-00-207-4974 BOLT,INTERNAL WRENCHING Index 5305-00-207-4989 SCREW,CAP,SOCKET HEAD

National Stock Number:
5306-00-207-4980

Federal Supply Class:
5306

National Item Identification Number:
002074980

Description:
BOLT,EXTERNALLY RELIEVED BODY

Detail:
An externally threaded fastener whose threaded portion is of one nominal diameter, and whose unthreaded portion has been machined or ground in one or more places or over its entire length to a maximum diameter less than the minimum pitch diameter of the thread (excludes undercuts for thread relief). It is No. 10 (0.190 IN.) (5 mm) or larger in size and has a head which is not designed to be held or driven with an inserted driver or designed for rotation by the thumb and fingers. A locking feature may be incorporated in the design of the head or threads. Excludes BOLT, INTERNAL WRENCHING and THUMBSCREW. See also SCREW, EXTERNALLY RELIEVED BODY.


Manufacturer Information:
34816198897LOCKHEED MARTIN CORP


Techincal Specification:
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER0.120 INCHES MINIMUM AND 0.130 INCHES MAXIMUM
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF THIRD DIAMETER1.560 INCHES MINIMUM AND 1.590 INCHES MAXIMUM
FASTENER LENGTH1.980 INCHES MINIMUM AND 2.000 INCHES MAXIMUM
FIRST DIAMETER FROM HEAD0.730 INCHES MINIMUM AND 0.740 INCHES MAXIMUM
HEAD DIAMETER1.125 INCHES NOMINAL
HEAD HEIGHT0.250 INCHES NOMINAL
HEAD STYLEROUND W/WRENCH FLATS
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-S-5000 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIALSTEEL COMP E4340 OVERALL
MINIMUM TENSILE STRENGTH180000 POUNDS PER SQUARE INCH
NOMINAL THREAD DIAMETER0.500 INCHES
SECOND DIAMETER FROM HEAD0.749 INCHES MINIMUM AND 0.750 INCHES MAXIMUM
WIDTH BETWEEN FLATS1.000 INCHES NOMINAL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION491-98897 MFR REF SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENTCADMIUM OVERALL
THREAD CLASS3A
THREAD DIRECTIONRIGHT-HAND
THIRD DIAMETER FROM HEAD0.422 INCHES MINIMUM AND 0.432 INCHES MAXIMUM
THREAD LENGTH0.400 INCHES MINIMUM AND 0.430 INCHES MAXIMUM
THREAD QUANTITY PER INCH20
THREAD SERIES DESIGNATORUNF


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