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National Stock Number:
5306-01-472-5391
Federal Supply Class:
5306
National Item Identification Number:
014725391
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:
| 13495121-3 | 18876 | U S ARMY AVIATION AND MISSILE COMMAND | | 13588720-3 | 18876 | U S ARMY AVIATION AND MISSILE COMMAND | | MIS-PRF-53016 | 18876 | U S ARMY AVIATION AND MISSILE COMMAND | | FTC 7590-3 | 58794 | FASTENER TECHNOLOGY CORP |
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Techincal Specification:
| THREAD SERIES DESIGNATOR | UNC | | NOMINAL THREAD DIAMETER | 0.250 INCHES | | THREAD QUANTITY PER INCH | 20 | | THREAD CLASS | 2A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.375 INCHES NOMINAL | | FASTENER LENGTH | 0.865 INCHES MINIMUM AND | | 0.885 INCHES MAXIMUM | | MATERIAL | STEEL OVERALL | | SURFACE TREATMENT | PASSIVATE AND | | LUBRICANT OVERALL | | MINIMUM TENSILE STRENGTH | 140000 POUNDS PER SQUARE INCH | | HEAD STYLE | HEXAGON | | HEAD HEIGHT | 0.150 INCHES MINIMUM AND | | 0.163 INCHES MAXIMUM | | WIDTH BETWEEN FLATS | 0.242 INCHES MINIMUM AND | | 0.251 INCHES MAXIMUM | | EXTERNALLY RELIEVED BODY DIAMETER QUANTITY | 1 | | SECOND DIAMETER FROM HEAD | 0.186 INCHES MINIMUM AND | | 0.190 INCHES MAXIMUM | | DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER | 0.490 INCHES MINIMUM AND | | 0.510 INCHES MAXIMUM |
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