5306-00-630-2090 BOLT,CLOSE TOLERANCE Index 5306-00-630-2093 BOLT,CLOSE TOLERANCE

National Stock Number:
5306-00-630-2091

Federal Supply Class:
5306

National Item Identification Number:
006302091

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:
AN176H4088044AERONAUTICAL STANDARDS GROUP DEPT OF NAVY AND AIR FORCE


Techincal Specification:
THREAD DIRECTIONRIGHT-HAND
FASTENER LENGTH4.062 INCHES MINIMUM AND
4.109 INCHES MAXIMUM
MATERIALSTEEL COMP 4140 OR
STEEL COMP 8740 OR
STEEL COMP 8630 OR
STEEL COMP 8735 OR
STEEL COMP 4130 OR
STEEL COMP 4037 OVERALL
THREAD LENGTH0.608 INCHES MINIMUM AND
0.687 INCHES MAXIMUM
HEAD STYLEHEXAGON
THREAD SERIES DESIGNATORUNF
NOMINAL THREAD DIAMETER0.375 INCHES
THREAD QUANTITY PER INCH24
THREAD CLASS3A
SURFACE TREATMENTCADMIUM AND
CHROMATE OVERALL
HARDNESS RATING26.0 ROCKWELL C MINIMUM AND
32.0 ROCKWELL C MAXIMUM OVERALL
MINIMUM TENSILE STRENGTH125000 POUNDS PER SQUARE INCH
HEAD HEIGHT0.203 INCHES MINIMUM AND
0.235 INCHES MAXIMUM
WIDTH BETWEEN FLATS0.553 INCHES MINIMUM AND
0.565 INCHES MAXIMUM
HOLE CONFIGURATION STYLEHEXAGON FLATS
HOLE TYPEDRILLED
HOLE QUANTITY1
HOLE DIAMETER0.070 INCHES MINIMUM AND
0.080 INCHES MAXIMUM
GRIP LENGTH3.422 INCHES MINIMUM AND
3.454 INCHES MAXIMUM
DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER3.000 INCHES NOMINAL FIRST HOLE
SHANK UNTHREADED HOLE DIAMETER0.106 INCHES MINIMUM AND
0.116 INCHES MAXIMUM FIRST HOLE
FEATURES PROVIDEDFINISHED HEAD
SPEC/STD CONTROLLING DATA
MANUFACTURERS CODE88044
DEFINITIVE GOVERNMENT SPEC/STD REFERENCEAN176H40


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