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National Stock Number:
5306-01-515-6686
Federal Supply Class:
5306
National Item Identification Number:
015156686
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:
| AN4-73A | 88044 | AERONAUTICAL STANDARDS GROUP DEPT OF NAVY AND AIR FORCE |
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Techincal Specification:
| FASTENER LENGTH | 7.406 INCHES NOMINAL | | GRIP DIAMETER | 0.246 INCHES MINIMUM AND 0.249 INCHES MAXIMUM | | GRIP LENGTH | 6.938 INCHES NOMINAL | | HEAD HEIGHT | 0.140 INCHES MINIMUM AND 0.172 INCHES MAXIMUM | | HEAD STYLE | HEXAGON | | MATERIAL | STEEL OVERALL | | MINIMUM TENSILE STRENGTH | 40000 POUNDS PER SQUARE INCH | | MINIMUM YIELD STRENGTH | 3130 POUNDS PER SQUARE INCH | | NOMINAL THREAD DIAMETER | 0.250 INCHES | | WIDTH BETWEEN FLATS | 0.428 INCHES MINIMUM AND 0.440 INCHES MAXIMUM | | THREAD CLASS | 3A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.468 INCHES NOMINAL | | THREAD QUANTITY PER INCH | 28 | | THREAD SERIES DESIGNATOR | UNF |
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