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National Stock Number:
5306-00-174-4178
Federal Supply Class:
5306
National Item Identification Number:
001744178
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.
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Manufacturer Information:
| 804367 | 34623 | AM GENERAL LLC | | 8328311 | 19207 | U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM |
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Techincal Specification:
| FASTENER LENGTH | 3.500 INCHES NOMINAL | | FEATURES PROVIDED | FINISHED HEAD | | GRIP LENGTH | 2.500 INCHES NOMINAL | | HARDNESS RATING | 18.0 ROCKWELL C MINIMUM AND 28.0 ROCKWELL C MAXIMUM OVERALL | | HEAD HEIGHT | 0.281 INCHES NOMINAL | | HEAD STYLE | HEXAGON | | MATERIAL | STEEL COMP 1137 OVERALL | | NOMINAL THREAD DIAMETER | 0.375 INCHES | | SPECIAL FEATURES | 0.062 IN. WIDE BY 0.359 IN. DIA GROOVE UNDER HEAD | | WIDTH BETWEEN FLATS | 0.562 INCHES NOMINAL | | THREAD CLASS | 3A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 1.000 INCHES MINIMUM | | THREAD QUANTITY PER INCH | 24 | | THREAD SERIES DESIGNATOR | UNF |
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