5305-01-444-8368 SCREW,CAP,SOCKET HEAD Index 5305-01-444-8370 SCREW,MACHINE

National Stock Number:
5306-01-444-8369

Federal Supply Class:
5306

National Item Identification Number:
014448369

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:
MS9452-0596906MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M


Techincal Specification:
THREAD SERIES DESIGNATORUNJF
NOMINAL THREAD DIAMETER0.250 INCHES
THREAD QUANTITY PER INCH28
THREAD CLASS3A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH0.349 INCHES MINIMUM
FASTENER LENGTH0.438 INCHES NOMINAL
MATERIALSTEEL COMP 601 OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 6304 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
SURFACE TREATMENTNICKEL AND
CADMIUM OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONAMS 2416 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
HARDNESS RATING42.0 ROCKWELL C MINIMUM AND
46.0 ROCKWELL C MAXIMUM OVERALL
HEAD STYLEHEXAGON
HEAD HEIGHT0.156 INCHES NOMINAL
WIDTH BETWEEN FLATS0.430 INCHES MINIMUM AND
0.439 INCHES MAXIMUM
EXTERNALLY RELIEVED BODY DIAMETER QUANTITY1
FIRST DIAMETER FROM HEAD0.222 INCHES MINIMUM AND
0.323 INCHES MAXIMUM
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER0.079 INCHES MINIMUM AND
0.099 INCHES MAXIMUM
SPEC/STD CONTROLLING DATA
MANUFACTURERS CODE96906
DEFINITIVE GOVERNMENT SPEC/STD REFERENCEMS9452-05


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