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National Stock Number:
5306-01-124-6451
Federal Supply Class:
5306
National Item Identification Number:
011246451
Description:
BOLT,EXTERNALLY RELIEVED BODY
Detail:
An externally threaded fastener whose threaded portion is of one nominal diameter, and whose unthreaded portion has been machined or ground in one or more places or over its entire length to a maximum diameter less than the minimum pitch diameter of the thread (excludes undercuts for thread relief). It is No. 10 (0.190 IN.) (5 mm) or larger in size and has a head which is not designed to be held or driven with an inserted driver or designed for rotation by the thumb and fingers. A locking feature may be incorporated in the design of the head or threads. Excludes BOLT, INTERNAL WRENCHING and THUMBSCREW. See also SCREW, EXTERNALLY RELIEVED BODY.
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Manufacturer Information:
| 10087925 | A486G | NIMIKKEISTOKESKUS NCB FINLAND | | 11629704 | 19207 | U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM |
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Techincal Specification:
| DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER | 0.125 INCHES MINIMUM AND 0.140 INCHES MAXIMUM | | EXTERNALLY RELIEVED BODY DIAMETER QUANTITY | 1 | | FASTENER LENGTH | 0.980 INCHES MINIMUM AND 1.020 INCHES MAXIMUM | | FIRST DIAMETER FROM HEAD | 1.067 INCHES MINIMUM AND 1.072 INCHES MAXIMUM | | HARDNESS RATING | 23.0 ROCKWELL C NOMINAL AND 32.0 ROCKWELL C MINIMUM OVERALL | | HEAD HEIGHT | 0.500 INCHES NOMINAL | | HEAD STYLE | HEXAGON | | MATERIAL | STEEL OVERALL | | NOMINAL THREAD DIAMETER | 1.188 INCHES | | WIDTH BETWEEN FLATS | 1.375 INCHES NOMINAL | | SURFACE TREATMENT | CADMIUM OVERALL | | THREAD CLASS | 3A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.780 INCHES NOMINAL | | THREAD SERIES DESIGNATOR | UN | | THREAD QUANTITY PER INCH | 12 |
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