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National Stock Number:
5306-00-867-9316
Federal Supply Class:
5306
National Item Identification Number:
008679316
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:
| A51A11906-11 | 26512 | NORTHROP GRUMMAN SYSTEMS CORPORATION | | A51A11906-11 | 61174 | NORTHROP GRUMMAN SYSTEMS CORPORATION | | A51A11906-11 | 79RG9 | NORTHROP GRUMMAN SYSTEMS CORPORATION |
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Techincal Specification:
| THREAD SERIES DESIGNATOR | UNF | | NOMINAL THREAD DIAMETER | 0.190 INCHES | | THREAD QUANTITY PER INCH | 32 | | THREAD CLASS | 3A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.406 INCHES MINIMUM | | FASTENER LENGTH | 3.031 INCHES NOMINAL | | MATERIAL | STEEL COMP 431 OVERALL | | HARDNESS RATING | 26.0 ROCKWELL C MINIMUM AND | | 32.0 ROCKWELL C MAXIMUM OVERALL | | HEAD STYLE | HEXAGON | | HEAD HEIGHT | 0.125 INCHES NOMINAL | | WIDTH BETWEEN FLATS | 0.365 INCHES MINIMUM AND | | 0.377 INCHES MAXIMUM | | EXTERNALLY RELIEVED BODY DIAMETER QUANTITY | 3 | | FIRST DIAMETER FROM HEAD | 0.186 INCHES MINIMUM AND | | 0.189 INCHES MAXIMUM | | SECOND DIAMETER FROM HEAD | 0.144 INCHES MINIMUM AND | | 0.147 INCHES MAXIMUM | | THIRD DIAMETER FROM HEAD | 0.186 INCHES MINIMUM AND | | 0.189 INCHES MAXIMUM | | DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER | 1.856 INCHES MINIMUM AND | | 1.858 INCHES MAXIMUM | | DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF SECOND DIAMETER | 1.870 INCHES NOMINAL | | DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF THIRD DIAMETER | 2.625 INCHES NOMINAL | | PART NAME ASSIGNED BY CONTROLLING AGENCY | NAVY SPECIAL PROJECT |
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