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National Stock Number:
5305-00-018-1491
Federal Supply Class:
5305
National Item Identification Number:
000181491
Description:
SCREW,CAP,HEXAGON HEAD
Detail:
An externally threaded fastener designed for insertion into holes in assembled parts, for mating with a preformed internal thread and for tightening or releasing by torquing the head. The threaded and unthreaded portions are both of the same nominal diameter of 0.190 inch (5 mm) or larger. Head dimensions and sizes of threaded and unthreaded portions shall conform to internationally recognized fastener standards. The thread length being the controlled dimension, the grip length is not specified. A locking feature may be incorporated in the design of the head or threads. Excludes BOLT, MACHINE; BOLT, EXTERNALLY RELIEVED BODY; BOLT, INTERNAL WRENCHING; and SCREW, CAP, SOCKET HEAD.
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Manufacturer Information:
| 113850 | 12204 | DAIMLER CHRYSLER | | 181491 | 21450 | ARMY WEAPONS COMMAND ATTN AMSWE-REE-S | | 181491 | 24617 | GENERAL MOTORS CORP | | 181491 | 7X677 | GENERAL MOTORS LLC | | 243701 | 08683 | BROCKWAY MOTOR TRUCKS DIV OF MACK TRUCKS INC | | 3X92 | 59690 | KOEHRING CO LORAIN DIV | | 3X92 | 8E499 | KOEHRING CRANES AND EXCAVATORS INC SUB OF NORTHWEST ENGINEERING CO | | 91193 | 65282 | WHITE MOTOR CORP | | BB27187 | 56442 | DIAMOND REO TRUCK CO |
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Techincal Specification:
| FASTENER LENGTH | 3.719 INCHES MINIMUM AND 3.781 INCHES MAXIMUM | | HEAD HEIGHT | 0.456 INCHES MINIMUM AND 0.481 INCHES MAXIMUM | | HEAD STYLE | HEXAGON | | MATERIAL | STEEL OVERALL | | MINIMUM YIELD STRENGTH | 85000 POUNDS PER SQUARE INCH | | NOMINAL THREAD DIAMETER | 0.625 INCHES | | WIDTH BETWEEN FLATS | 0.860 INCHES MINIMUM AND 0.875 INCHES MAXIMUM | | THREAD CLASS | 2A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 1.500 INCHES MINIMUM AND 1.688 INCHES MAXIMUM | | THREAD SERIES DESIGNATOR | UNF | | THREAD QUANTITY PER INCH | 18 |
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