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National Stock Number: 5306-00-466-6540
Federal Supply Class: 5306
National Item Identification Number: 004666540
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:
NAS568-101 | 80205 | NATIONAL AEROSPACE STANDARDS COMMITTEE AEROSPACE INDUSTRIES ASSOCIATION OF AMERICA INC NOT FOR RFQ OR SOLICITATION USE |
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Techincal Specification:
FASTENER LENGTH | 3.156 INCHES NOMINAL | FEATURES PROVIDED | FINISHED HEAD | HARDNESS RATING | 36.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM OVERALL | HEAD HEIGHT | 0.375 INCHES NOMINAL | HEAD STYLE | HEXAGON | MATERIAL DOCUMENT AND CLASSIFICATION | AMS 5737 ASSN STD SINGLE MATERIAL RESPONSE OVERALL | MATERIAL | IRON ALLOY 660 OVERALL | MINIMUM TENSILE STRENGTH | 180000 POUNDS PER SQUARE INCH | NOMINAL THREAD DIAMETER | 0.500 INCHES | WIDTH BETWEEN FLATS | 0.740 INCHES MINIMUM AND 0.752 INCHES MAXIMUM | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416 TYPE 2,CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL | SURFACE TREATMENT | CADMIUM OVERALL | THREAD CLASS | 3A | THREAD DIRECTION | RIGHT-HAND | THREAD LENGTH | 3.015 INCHES MAXIMUM | THREAD SERIES DESIGNATOR | UNF | THREAD QUANTITY PER INCH | 20 |
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