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National Stock Number:
5305-00-619-4860
Federal Supply Class:
5305
National Item Identification Number:
006194860
Description:
SCREW,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 undercut for thread relief). It is No. 0 (0.060 IN.) (1.5 mm) or larger, and is designed to be held or driven with either a wrench or inserted driver (excluding internal socket and multiple spline types) or both in sizes below No. 10 (0.190 IN.) (5 mm) and larger sizes must have a head designed for any type inserted driver (excluding internal socket and multiple spline types) but may also be designed for external wrenching. A locking feature may be incorporated in the design of the head or threads. See also BOLT, EXTERNALLY RELIEVED BODY and BOLT, INTERNAL WRENCHING.
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Manufacturer Information:
| 59714DB | 31007 | NAVISTAR INTL CORP | | 59714DB | 92679 | NAVISTAR INTL CORP MELROSE PARK ENGINE PLANT LOCATION /MELROSE PARK/ |
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Techincal Specification:
| THREAD SERIES DESIGNATOR | UNF | | NOMINAL THREAD DIAMETER | 0.312 INCHES | | THREAD QUANTITY PER INCH | 24 | | THREAD CLASS | 2A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.151 INCHES MINIMUM AND | | 0.158 INCHES MAXIMUM | | FASTENER LENGTH | 0.433 INCHES MINIMUM AND | | 0.439 INCHES MAXIMUM | | MATERIAL | STEEL OVERALL | | HEAD STYLE | FLAT CHAMFER | | HEAD DIAMETER | 0.438 INCHES NOMINAL | | HEAD HEIGHT | 0.139 INCHES MINIMUM AND | | 0.146 INCHES MAXIMUM | | INTERNAL DRIVE STYLE | CROSS RECESS TYPE 1 | | EXTERNALLY RELIEVED BODY DIAMETER QUANTITY | 4 | | FIRST DIAMETER FROM HEAD | 0.228 INCHES MINIMUM AND | | 0.233 INCHES MAXIMUM | | SECOND DIAMETER FROM HEAD | 0.312 INCHES NOMINAL | | THIRD DIAMETER FROM HEAD | 0.223 INCHES MINIMUM AND | | 0.227 INCHES MAXIMUM | | FOURTH DIAMETER FROM HEAD | 0.233 INCHES MINIMUM AND | | 0.234 INCHES MAXIMUM | | DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER | 0.094 INCHES NOMINAL | | DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF SECOND DIAMETER | 0.245 INCHES MINIMUM AND | | 0.252 INCHES MAXIMUM | | DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF THIRD DIAMETER | 0.391 INCHES NOMINAL | | DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FOURTH DIAMETER | 0.422 INCHES NOMINAL | | THE MANUFACTURERS DATA | | | MANUFACTURERS CODE | 92679 | | DESIGN CONTROL REFERENCE | 59714DB |
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