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National Stock Number:
5306-00-274-1925
Federal Supply Class:
5306
National Item Identification Number:
002741925
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:
| 3211126 | 24617 | GENERAL MOTORS CORP | | 3211126 | 55380 | HATCH & KIRK, INC. | | 3224450 | 24617 | GENERAL MOTORS CORP | | 3224450 | 55380 | HATCH & KIRK, INC. | | 3211126 | 72915 | GENERAL MOTORS CORP ELECTRO-MOTIVE DIV | | 3211126 | 7X677 | GENERAL MOTORS LLC | | 3224450 | 72915 | GENERAL MOTORS CORP ELECTRO-MOTIVE DIV | | 3224450 | 7X677 | GENERAL MOTORS LLC |
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Techincal Specification:
| DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER | 4.688 INCHES NOMINAL FIRST HOLE | | FASTENER LENGTH | 4.938 INCHES NOMINAL | | FEATURES PROVIDED | UNFINISHED HEAD | | HARDNESS RATING | 26.0 ROCKWELL C MINIMUM AND 31.0 ROCKWELL C MAXIMUM OVERALL | | HEAD HEIGHT | 0.562 INCHES NOMINAL | | HEAD STYLE | HEXAGON | | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-890 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | STEEL OVERALL | | NOMINAL THREAD DIAMETER | 0.750 INCHES | | SHANK UNTHREADED HOLE DIAMETER | 0.157 INCHES NOMINAL FIRST HOLE | | SPECIAL FEATURES | SIX 90.0 DEG NOTCHES CUT IN CORNERS OF HEX TO INDICATE HEAT TREATED ALLOY | | THREAD CLASS | 3A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 1.125 INCHES MINIMUM | | THREAD QUANTITY PER INCH | 16 | | THREAD SERIES DESIGNATOR | UNF | | WIDTH BETWEEN FLATS | 1.125 INCHES NOMINAL |
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