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National Stock Number:
5306-01-034-4124
Federal Supply Class:
5306
National Item Identification Number:
010344124
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:
| 272S2000078-1 | 38597 | LOCKHEED MARTIN CORPORATION |
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Techincal Specification:
| THREAD DIRECTION | RIGHT-HAND | | FASTENER LENGTH | 2.688 INCHES MINIMUM AND | | 2.733 INCHES MAXIMUM | | MATERIAL | ALUMINUM ALLOY OVERALL | | THREAD LENGTH | 2.663 INCHES NOMINAL | | HEAD STYLE | HEXAGON | | THREAD SERIES DESIGNATOR | UNF | | NOMINAL THREAD DIAMETER | 0.375 INCHES | | THREAD QUANTITY PER INCH | 24 | | THREAD CLASS | 3A | | HEAD HEIGHT | 0.203 INCHES MINIMUM AND | | 0.225 INCHES MAXIMUM | | WIDTH BETWEEN FLATS | 0.562 INCHES NOMINAL | | GRIP LENGTH | 2.047 INCHES MINIMUM AND | | 2.077 INCHES MAXIMUM | | DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER | 2.106 INCHES NOMINAL FIRST HOLE | | SHANK UNTHREADED HOLE DIAMETER | 0.104 INCHES MINIMUM AND | | 0.109 INCHES MAXIMUM FIRST HOLE |
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