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National Stock Number:
5306-01-203-2621
Federal Supply Class:
5306
National Item Identification Number:
012032621
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:
| J645P10B | 07482 | GENERAL ELECTRIC COMPANY | | J645P10B | 58828 | CFM INTERNATIONAL INC |
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Techincal Specification:
| THREAD DIRECTION | RIGHT-HAND | | FASTENER LENGTH | 0.802 INCHES MINIMUM AND | | 0.822 INCHES MAXIMUM | | MATERIAL | NICKEL ALLOY 718 OVERALL | | THREAD LENGTH | 0.719 INCHES MINIMUM AND | | 0.822 INCHES MAXIMUM | | HEAD STYLE | DOUBLE HEXAGON EXTENDED WASHER | | THREAD SERIES DESIGNATOR | UNJF | | NOMINAL THREAD DIAMETER | 0.312 INCHES | | THREAD QUANTITY PER INCH | 24 | | THREAD CLASS | 3A | | HEAD HEIGHT | 0.328 INCHES MINIMUM AND | | 0.348 INCHES MAXIMUM | | WIDTH BETWEEN FLATS | 0.3750 INCHES NOMINAL | | EXTENDED WASHER DIAMETER | 0.490 INCHES MINIMUM AND | | 0.510 INCHES MAXIMUM | | EXTENDED WASHER THICKNESS | 0.070 INCHES MINIMUM AND | | 0.080 INCHES MAXIMUM | | HOLE CONFIGURATION STYLE | DOUBLE HEXAGON FLATS | | HOLE TYPE | DRILLED | | HOLE QUANTITY | 2 | | HOLE DIAMETER | 0.090 INCHES MINIMUM AND | | 0.110 INCHES MAXIMUM | | SURFACE FINISH | 32.0 MICROINCHES GRIP | | 32.0 MICROINCHES THREADS | | FEATURES PROVIDED | FINISHED HEAD | | SPECIAL FEATURES | PART IS ESSENTIAL TO WEAPON SYSTEM PERFORMANCE | | CRITICALITY CODE JUSTIFICATION | FEAT |
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