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National Stock Number: 5306-00-518-5743
Federal Supply Class: 5306
National Item Identification Number: 005185743
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:
2076575P1 | 10001 | NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER |
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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 | 0.204 INCHES MINIMUM AND | | 0.265 INCHES MAXIMUM | FASTENER LENGTH | 0.969 INCHES MINIMUM AND | | 1.000 INCHES MAXIMUM | MATERIAL | STEEL COMP 302 OR | | STEEL COMP 303 OR | | STEEL COMP 304 OR | | STEEL COMP 305 OR | | STEEL COMP 316 OVERALL | MATERIAL DOCUMENT AND CLASSIFICATION | 66 FED STD ALL MATERIAL RESPONSES OVERALL | SURFACE TREATMENT | PASSIVATE OVERALL | HARDNESS RATING | 80.0 ROCKWELL C NOMINAL OVERALL | MINIMUM TENSILE STRENGTH | 80000 POUNDS PER SQUARE INCH | MINIMUM YIELD STRENGTH | 30000 POUNDS PER SQUARE INCH | HEAD STYLE | HEXAGON | HEAD HEIGHT | 0.150 INCHES MINIMUM AND | | 0.163 INCHES MAXIMUM | WIDTH BETWEEN FLATS | 0.428 INCHES MINIMUM AND | | 0.437 INCHES MAXIMUM | EXTERNALLY RELIEVED BODY DIAMETER QUANTITY | 1 | FIRST DIAMETER FROM HEAD | 0.170 INCHES MINIMUM AND | | 0.190 INCHES MAXIMUM | DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER | 0.735 INCHES MINIMUM AND | | 0.765 INCHES MAXIMUM |
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