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National Stock Number:
5306-00-930-2444
Federal Supply Class:
5306
National Item Identification Number:
009302444
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:
| 7986533 | 19206 | ARMY, UNITED STATES DEPARTMENT OF THE BUSINESS DEVELOPMENT DBA WATERVLIET ARSENAL |
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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 | 0.680 INCHES MINIMUM | | FASTENER LENGTH | 0.740 INCHES MINIMUM AND | | 0.760 INCHES MAXIMUM | | MATERIAL | STEEL OVERALL | | HARDNESS RATING | 32.0 ROCKWELL C MINIMUM AND | | 36.0 ROCKWELL C MAXIMUM OVERALL | | HEAD STYLE | CROWNED HEXAGON | | HEAD HEIGHT | 0.200 INCHES NOMINAL | | WIDTH BETWEEN FLATS | 0.376 INCHES NOMINAL | | EXTERNALLY RELIEVED BODY DIAMETER QUANTITY | 1 | | FIRST DIAMETER FROM HEAD | 0.198 INCHES NOMINAL | | DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER | 0.060 INCHES NOMINAL | | FEATURES PROVIDED | CASEHARDENED |
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