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National Stock Number:
5306-01-426-7636
Federal Supply Class:
5306
National Item Identification Number:
014267636
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:
| 705769 | 99167 | HAMILTON SUNDSTRAND CORPORATION |
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Techincal Specification:
| DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER | 0.220 INCHES NOMINAL | | COLOR | GRAY/GREY OVERALL | | EXTERNALLY RELIEVED BODY DIAMETER QUANTITY | 1 | | FASTENER LENGTH | 0.620 INCHES NOMINAL | | FIRST DIAMETER FROM HEAD | 0.190 INCHES NOMINAL | | HARDNESS RATING | 40.0 ROCKWELL C MINIMUM OVERALL AND 45.0 ROCKWELL C MAXIMUM OVERALL | | HEAD HEIGHT | 0.375 INCHES NOMINAL | | HEAD STYLE | CROWNED HEXAGON | | NOMINAL THREAD DIAMETER | 0.250 INCHES | | MATERIAL | STEEL COMP 4140 OVERALL | | SPECIAL FEATURES | KNOWN AS WEBBLER STOP SCREW | | THREAD CLASS | 3A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.400 INCHES NOMINAL | | THREAD QUANTITY PER INCH | 28 | | THREAD SERIES DESIGNATOR | UNJF | | WIDTH BETWEEN FLATS | 0.435 INCHES NOMINAL |
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