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National Stock Number:
5306-00-886-2999
Federal Supply Class:
5306
National Item Identification Number:
008862999
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:
| 10908704 | 19207 | U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM | | 5306008862999 | A00AM | E.C.A ETABLISSEMENT CENTRAL DESAPPROVISIONNEMENTS DES FORCES ARMEE | | 5306008862999 | SCY13 | E.C.A ETABLISSEMENT CENTRALD'APPROVISIONNEMENT DES FORCES ARMEE |
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Techincal Specification:
| THREAD SERIES DESIGNATOR | UNF | | NOMINAL THREAD DIAMETER | 0.250 INCHES | | THREAD QUANTITY PER INCH | 28 | | THREAD CLASS | 2A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.789 INCHES MINIMUM AND | | 0.856 INCHES MAXIMUM | | FASTENER LENGTH | 1.289 INCHES MINIMUM AND | | 1.356 INCHES MAXIMUM | | MATERIAL | STEEL COMP 4140 OR | | STEEL COMP 5140 OR | | STEEL COMP 8640 OVERALL | | SURFACE TREATMENT | CADMIUM AND | | CHROMATE OVERALL | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416,TY 2,CL 3 FED SPEC ALL TREATMENT RESPONSES OVERALL | | HEAD STYLE | FLAT CHAMFER | | HEAD DIAMETER | 0.344 INCHES MINIMUM AND | | 0.406 INCHES MAXIMUM | | HEAD HEIGHT | 0.300 INCHES MINIMUM AND | | 0.305 INCHES MAXIMUM | | EXTERNALLY RELIEVED BODY DIAMETER QUANTITY | 2 | | FIRST DIAMETER FROM HEAD | 0.247 INCHES MINIMUM AND | | 0.249 INCHES MAXIMUM | | SECOND DIAMETER FROM HEAD | 0.178 INCHES MINIMUM AND | | 0.183 INCHES MAXIMUM | | DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER | 0.094 INCHES MINIMUM AND | | 0.156 INCHES MAXIMUM | | DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF SECOND DIAMETER | 0.500 INCHES NOMINAL |
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