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National Stock Number:
5306-01-364-7686
Federal Supply Class:
5306
National Item Identification Number:
013647686
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:
| AN4DD31A | 88044 | AERONAUTICAL STANDARDS GROUP DEPT OF NAVY AND AIR FORCE |
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Techincal Specification:
| FASTENER LENGTH | 3.156 INCHES NOMINAL | | GRIP LENGTH | 2.688 INCHES NOMINAL | | HEAD HEIGHT | 0.312 INCHES NOMINAL | | HEAD STYLE | HEXAGON | | MATERIAL | ALUMINUM ALLOY OVERALL | | MINIMUM TENSILE STRENGTH | 62000 POUNDS PER SQUARE INCH | | NOMINAL THREAD DIAMETER | 0.250 INCHES | | SPECIFICATION/STANDARD DATA | 88044-AN4DD31A PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD | | WIDTH BETWEEN FLATS | 0.868 INCHES NOMINAL | | SURFACE TREATMENT | OXIDE FILM OVERALL | | THREAD DIRECTION | RIGHT-HAND | | THREAD CLASS | 3A | | THREAD LENGTH | 0.438 INCHES MINIMUM AND 0.516 INCHES MAXIMUM | | THREAD SERIES DESIGNATOR | UNF | | THREAD QUANTITY PER INCH | 28 |
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