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National Stock Number:
5306-01-102-2670
Federal Supply Class:
5306
National Item Identification Number:
011022670
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:
| SS27576-4-25 | 29372 | HOWMET GLOBAL FASTENING SYSTEMS INC. | | SS27576-4-25 | 56878 | SPS TECHNOLOGIES, LLC | | SS27576-4-25 | 58794 | FASTENER TECHNOLOGY CORP | | SS27576-4-25 | 78286 | SIKORSKY AIRCRAFT CORPORATION | | SS27576-4-25 | 80539 | SPS TECHNOLOGIES, LLC | | SS27576-4-25 | 84256 | AVIBANK MFG., INC. |
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Techincal Specification:
| FASTENER LENGTH | 1.991 INCHES NOMINAL | | HEAD HEIGHT | 0.126 INCHES MINIMUM AND 0.141 INCHES MAXIMUM | | HEAD STYLE | CROWNED HEXAGON | | MATERIAL | STEEL OVERALL | | NOMINAL THREAD DIAMETER | 0.250 INCHES | | SURFACE TREATMENT | CADMIUM OVERALL | | THREAD CLASS | 3A | | THREAD QUANTITY PER INCH | 28 | | THREAD SERIES DESIGNATOR | UNIFIED NATIONAL JOINT FINE (UNJF) | | WIDTH BETWEEN FLATS | 0.430 INCHES MINIMUM AND 0.439 INCHES MAXIMUM |
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