5306-00-151-3030 BOLT,MACHINE Index 5305-00-151-3035 SCREW,MACHINE

National Stock Number:
5306-00-151-3031

Federal Supply Class:
5306

National Item Identification Number:
001513031

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:
AN9-5188044AERONAUTICAL STANDARDS GROUP DEPT OF NAVY AND AIR FORCE
B681281349MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M


Techincal Specification:
THREAD DIRECTIONRIGHT-HAND
FASTENER LENGTH5.281 INCHES NOMINAL
MATERIALSTEEL OVERALL
THREAD LENGTH0.906 INCHES MINIMUM
HEAD STYLEHEXAGON
THREAD SERIES DESIGNATORUNF
NOMINAL THREAD DIAMETER0.562 INCHES
THREAD QUANTITY PER INCH18
THREAD CLASS3A
SURFACE TREATMENTCADMIUM AND
DICHROMATE OVERALL
HARDNESS RATING26.0 ROCKWELL C MINIMUM AND
32.0 ROCKWELL C MAXIMUM OVERALL
MINIMUM TENSILE STRENGTH125000 POUNDS PER SQUARE INCH
HEAD HEIGHT0.312 INCHES NOMINAL
WIDTH BETWEEN FLATS0.875 INCHES NOMINAL
GRIP LENGTH4.375 INCHES NOMINAL
DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER5.031 INCHES NOMINAL FIRST HOLE
SHANK UNTHREADED HOLE DIAMETER0.141 INCHES NOMINAL FIRST HOLE
FEATURES PROVIDEDFINISHED HEAD
SPEC/STD CONTROLLING DATA
MANUFACTURERS CODE88044
DEFINITIVE GOVERNMENT SPEC/STD REFERENCEAN9-51
MANUFACTURERS CODE81349
NON-DEFINITIVE GOVERNMENT SPEC/STD REFERENCEB6812


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