5306-01-310-5244 BOLT,MACHINE Index 5306-01-310-5246 BOLT,MACHINE

National Stock Number:
5306-01-310-5245

Federal Supply Class:
5306

National Item Identification Number:
013105245

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:
AN9CH20A88044AERONAUTICAL STANDARDS GROUP DEPT OF NAVY AND AIR FORCE


Techincal Specification:
THREAD DIRECTIONRIGHT-HAND
FASTENER LENGTH2.140 INCHES MINIMUM AND
2.187 INCHES MAXIMUM
MATERIALSTEEL COMP 431 OVERALL
THREAD LENGTH0.874 INCHES MINIMUM AND
0.953 INCHES MAXIMUM
HEAD STYLEHEXAGON
THREAD SERIES DESIGNATORUNF
NOMINAL THREAD DIAMETER0.562 INCHES
THREAD QUANTITY PER INCH18
THREAD CLASS3A
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-S-18732 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
SURFACE TREATMENTPASSIVATE OVERALL
HARDNESS RATING26.0 ROCKWELL C MINIMUM AND
32.0 ROCKWELL C MAXIMUM OVERALL
MINIMUM TENSILE STRENGTH125000 POUNDS PER SQUARE INCH
HEAD HEIGHT0.296 INCHES MINIMUM AND
0.328 INCHES MAXIMUM
WIDTH BETWEEN FLATS0.865 INCHES MINIMUM AND
0.877 INCHES MAXIMUM
HOLE CONFIGURATION STYLEHEXAGON FLATS
HOLE TYPEDRILLED
HOLE QUANTITY1
HOLE DIAMETER0.070 INCHES MINIMUM AND
0.080 INCHES MAXIMUM
GRIP LENGTH1.234 INCHES MINIMUM AND
1.266 INCHES MAXIMUM
FEATURES PROVIDEDFINISHED HEAD
SPEC/STD CONTROLLING DATA
MANUFACTURERS CODE88044
DEFINITIVE GOVERNMENT SPEC/STD REFERENCEAN9CH20A


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