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National Stock Number:
5306-00-690-9621
Federal Supply Class:
5306
National Item Identification Number:
006909621
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:
| 37344 | 99193 | HONEYWELL INTERNATIONAL INC. | | 373744 | 70210 | HONEYWELL INTERNATIONAL INC. | | 373744 | 72599 | ALLIEDSIGNAL INC DBA ALLIED-SIGNAL AEROSPACE CO | | 373744 | 99193 | HONEYWELL INTERNATIONAL INC. |
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Techincal Specification:
| THREAD SERIES DESIGNATOR | UNF | | NOMINAL THREAD DIAMETER | 0.250 INCHES | | THREAD QUANTITY PER INCH | 28 | | THREAD CLASS | 3A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.610 INCHES MINIMUM AND | | 0.870 INCHES MAXIMUM | | FASTENER LENGTH | 2.610 INCHES MINIMUM AND | | 2.640 INCHES MAXIMUM | | MATERIAL | STEEL COMP E4340 OVERALL | | HARDNESS RATING | 34.0 ROCKWELL C MINIMUM AND | | 38.0 ROCKWELL C MAXIMUM OVERALL | | HEAD STYLE | HEXAGON | | HEAD HEIGHT | 0.176 INCHES MINIMUM AND | | 0.226 INCHES MAXIMUM | | WIDTH BETWEEN FLATS | 0.438 INCHES NOMINAL | | EXTERNALLY RELIEVED BODY DIAMETER QUANTITY | 2 | | FIRST DIAMETER FROM HEAD | 0.243 INCHES MINIMUM AND | | 0.250 INCHES MAXIMUM | | SECOND DIAMETER FROM HEAD | 0.195 INCHES MINIMUM AND | | 0.200 INCHES MAXIMUM | | DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER | 0.600 INCHES MINIMUM AND | | 0.630 INCHES MAXIMUM | | DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF SECOND DIAMETER | 1.920 INCHES MINIMUM AND | | 2.000 INCHES MAXIMUM | | THE MANUFACTURERS DATA | | | MANUFACTURERS CODE | 99193 | | DESIGN CONTROL REFERENCE | 373744 |
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