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National Stock Number:
5306-00-674-1672
Federal Supply Class:
5306
National Item Identification Number:
006741672
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:
| 56A23573 | 99238 | AIR FORCE STANDARD |
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Techincal Specification:
| DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER | 0.125 INCHES NOMINAL | | EXTERNALLY RELIEVED BODY DIAMETER QUANTITY | 1 | | FASTENER LENGTH | 1.438 INCHES NOMINAL | | FIRST DIAMETER FROM HEAD | 0.375 INCHES NOMINAL | | HEAD HEIGHT | 0.250 INCHES NOMINAL | | HEAD STYLE | HEXAGON | | MATERIAL | STEEL COMP 1213 OR STEEL COMP 1212 OVERALL | | NOMINAL THREAD DIAMETER | 0.438 INCHES | | WIDTH BETWEEN FLATS | 0.625 INCHES NOMINAL | | SURFACE TREATMENT | CADMIUM OVERALL | | THREAD CLASS | 2A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 1.032 INCHES NOMINAL | | THREAD QUANTITY PER INCH | 20 | | THREAD SERIES DESIGNATOR | UNF |
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