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National Stock Number:
5306-99-495-7694
Federal Supply Class:
5306
National Item Identification Number:
994957694
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:
| AS20948 | 0U583 | SAE INTERNATIONAL | | AS20948 | U14C6 | SAE ITC ENGINE & AIRFRAME TECHNICALSTANDARDS | | AS20948 | U1653 | SOCIETY OF BRITISH AEROSPACE COMPANI LTD SBAC |
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Techincal Specification:
| EXTENDED WASHER THICKNESS | 0.040 INCHES MINIMUM | | EXTENDED WASHER DIAMETER | 0.365 INCHES MINIMUM AND 0.385 INCHES MAXIMUM | | FASTENER LENGTH | 3.000 INCHES NOMINAL AND 2.990 INCHES MINIMUM AND 3.010 INCHES MAXIMUM | | GRIP LENGTH | 2.310 INCHES MINIMUM AND 2.370 INCHES MAXIMUM | | HARDNESS RATING | 35.0 ROCKWELL C MINIMUM AND 41.0 ROCKWELL C NOMINAL OVERALL | | HEAD HEIGHT | 0.248 INCHES MINIMUM AND 0.268 INCHES MAXIMUM | | HEAD STYLE | DOUBLE HEXAGON W/HOLE | | MATERIAL DOCUMENT AND CLASSIFICATION | BS S159 NATIONAL STD/SPEC SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | STEEL OVERALL | | III PART NAME ASSIGNED BY CONTROLLING AGENCY | SCREW,MACHINE | | NOMINAL THREAD DIAMETER | 0.190 INCHES | | SPECIAL FEATURES | HOLE IN TOP OF HEAD 0.100IN. DIA,0.148IN. DEEP WITH 5 DEG TAPER | | WIDTH BETWEEN FLATS | 0.240 INCHES MINIMUM AND 0.260 INCHES MAXIMUM | | THREAD CLASS | 3A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.660 INCHES NOMINAL | | THREAD QUANTITY PER INCH | 32 | | THREAD SERIES DESIGNATOR | UNJF |
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