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National Stock Number:
5306-01-447-7944
Federal Supply Class:
5306
National Item Identification Number:
014477944
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:
| 1/2-13UNC-2A X 1 1/4 LG | 53711 | NAVAL SEA SYSTEMS COMMAND | | 122-5008265 P/N 29 | 53711 | NAVAL SEA SYSTEMS COMMAND |
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Techincal Specification:
| THREAD DIRECTION | RIGHT-HAND | | FASTENER LENGTH | 1.250 INCHES NOMINAL | | MATERIAL | STEEL CORROSION RESISTING OVERALL | | THREAD LENGTH | 1.096 INCHES MINIMUM AND | | 1.250 INCHES MAXIMUM | | HEAD STYLE | HEXAGON | | THREAD SERIES DESIGNATOR | UNC | | NOMINAL THREAD DIAMETER | 0.500 INCHES | | THREAD QUANTITY PER INCH | 13 | | THREAD CLASS | 2A | | MATERIAL DOCUMENT AND CLASSIFICATION | SAE J429 GR2 ASSN STD SINGLE MATERIAL RESPONSE OVERALL | | SURFACE TREATMENT | ZINC AND | | CHROMATE OVERALL | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-Z-325 FED SPEC SINGLE TREATMENT RESPONSE OVERALL | | HARDNESS RATING | 80.0 ROCKWELL B NOMINAL OVERALL | | MINIMUM TENSILE STRENGTH | 75000 POUNDS PER SQUARE INCH | | HEAD HEIGHT | 0.302 INCHES MINIMUM AND | | 0.364 INCHES MAXIMUM | | WIDTH BETWEEN FLATS | 0.850 INCHES MINIMUM AND | | 0.875 INCHES MAXIMUM | | FEATURES PROVIDED | FINISHED HEAD |
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