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National Stock Number: 5306-00-207-5120
Federal Supply Class: 5306
National Item Identification Number: 002075120
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:
2070D99 | 0AHP5 | CURTISS-WRIGHT CONTROLS, INC. | 2070D99 | 15555 | CURTISS-WRIGHT CORP |
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Techincal Specification:
THREAD SERIES DESIGNATOR | UNF | NOMINAL THREAD DIAMETER | 0.312 INCHES | THREAD QUANTITY PER INCH | 24 | THREAD CLASS | 3A | THREAD LENGTH | 0.580 INCHES MINIMUM | FASTENER LENGTH | 1.380 INCHES NOMINAL | MATERIAL | STEEL OVERALL | HARDNESS RATING | 26.0 ROCKWELL C MINIMUM AND | | 32.0 ROCKWELL C MAXIMUM OVERALL | HEAD STYLE | HEXAGON | HEAD HEIGHT | 0.188 INCHES NOMINAL | WIDTH BETWEEN FLATS | 0.491 INCHES MINIMUM AND | | 0.500 INCHES MAXIMUM | FIRST DIAMETER FROM HEAD | 0.240 INCHES NOMINAL | THIRD DIAMETER FROM HEAD | 0.240 INCHES NOMINAL | DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER | 0.070 INCHES MINIMUM AND | | 0.080 INCHES MAXIMUM | DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF SECOND DIAMETER | 0.710 INCHES MINIMUM AND | | 0.740 INCHES MAXIMUM | DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF THIRD DIAMETER | 0.800 INCHES NOMINAL | THE MANUFACTURERS DATA | | MANUFACTURERS CODE | 15555 | DESIGN CONTROL REFERENCE | 2070D99 |
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