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National Stock Number:
5306-00-870-3010
Federal Supply Class:
5306
National Item Identification Number:
008703010
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:
| 6863080 | 73342 | ALLISON TRANSMISSION INC | | 6863080 | K0680 | ROLLS-ROYCE AIRLINES | | BLT2123 | K0680 | ROLLS-ROYCE AIRLINES |
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Techincal Specification:
| THREAD SERIES DESIGNATOR | UNJF | | NOMINAL THREAD DIAMETER | 0.250 INCHES | | THREAD QUANTITY PER INCH | 28 | | NONSTANDARD THREAD PITCH DIAMETER | 0.2212 TO 0.2238 INCHES | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.713 INCHES MINIMUM | | FASTENER LENGTH | 2.690 INCHES MINIMUM AND | | 2.710 INCHES MAXIMUM | | MATERIAL | STEEL CORROSION RESISTING OVERALL | | HARDNESS RATING | 36.0 ROCKWELL C MINIMUM AND | | 41.0 ROCKWELL C MAXIMUM OVERALL | | HEAD STYLE | HEXAGON | | HEAD HEIGHT | 0.146 INCHES MINIMUM AND | | 0.166 INCHES MAXIMUM | | WIDTH BETWEEN FLATS | 0.430 INCHES MINIMUM AND | | 0.439 INCHES MAXIMUM | | EXTERNALLY RELIEVED BODY DIAMETER QUANTITY | 2 | | FIRST DIAMETER FROM HEAD | 0.244 INCHES MINIMUM AND | | 0.249 INCHES MAXIMUM | | SECOND DIAMETER FROM HEAD | 0.190 INCHES MINIMUM AND | | 0.195 INCHES MAXIMUM | | DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER | 0.180 INCHES MINIMUM AND | | 0.220 INCHES MAXIMUM | | DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF SECOND DIAMETER | 1.940 INCHES MINIMUM AND | | 2.000 INCHES MAXIMUM | | THE MANUFACTURERS DATA | | | MANUFACTURERS CODE | 73342 | | DESIGN CONTROL REFERENCE | 6863080 |
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