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National Stock Number:
5306-01-205-4522
Federal Supply Class:
5306
National Item Identification Number:
012054522
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:
| 0.50013UNC2A3.125T1G4340SDCOLD | 81349 | MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M | | 112-5950678 | 53711 | NAVAL SEA SYSTEMS COMMAND | | 112-5950678 PC10 | 53711 | NAVAL SEA SYSTEMS COMMAND | | 688-1864 0.500-13UNC-2AX3.125 | 43689 | HUNTINGTON INGALLS INC | | 688-1864 0.500-13UNC-2AX3.125 | 96169 | ELECTRIC BOAT CORPORATION |
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Techincal Specification:
| CRITICALITY CODE JUSTIFICATION | ZZZY | | FASTENER LENGTH | 3.125 INCHES NOMINAL | | HEAD HEIGHT | 0.302 INCHES MINIMUM AND 0.364 INCHES MAXIMUM | | HEAD STYLE | HEXAGON | | MATERIAL | STEEL COMP 4340 OVERALL | | NOMINAL THREAD DIAMETER | 0.500 INCHES | | REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICS | MATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUALITY CONTROL,MANUFACTURING AND TESTING SPECIFICATIONS | | WIDTH BETWEEN FLATS | 0.725 INCHES MINIMUM AND 0.750 INCHES MAXIMUM | | SURFACE TREATMENT | PHOSPHATE MANGANESE OVERALL | | THREAD CLASS | 2A | | THREAD DIRECTION | RIGHT-HAND | | THREAD QUANTITY PER INCH | 13 | | THREAD SERIES DESIGNATOR | UNC |
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