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National Stock Number:
5306-00-067-3383
Federal Supply Class:
5306
National Item Identification Number:
000673383
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:
| 10935343 | 19207 | U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM |
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Techincal Specification:
| DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER | 1.910 INCHES NOMINAL | | EXTERNALLY RELIEVED BODY DIAMETER QUANTITY | 2 | | FASTENER LENGTH | 2.650 INCHES NOMINAL | | FIRST DIAMETER FROM HEAD | 0.460 INCHES MINIMUM AND 0.470 INCHES MAXIMUM | | HARDNESS RATING | 32.0 ROCKWELL C MINIMUM AND 37.0 ROCKWELL C MAXIMUM OVERALL | | HEAD HEIGHT | 0.320 INCHES NOMINAL | | HEAD STYLE | HEXAGON | | MATERIAL DOCUMENT AND CLASSIFICATION | SAE8640 ASSN STD 1ST MATERIAL RESPONSE OR SAE8637 ASSN STD 2ND MATERIAL RESPONSE OR SAE4140 ASSN STD 3RD MATERIAL RESPONSE OVERALL | | MATERIAL | STEEL OVERALL | | NOMINAL THREAD DIAMETER | 0.562 INCHES | | WIDTH BETWEEN FLATS | 0.820 INCHES NOMINAL | | THREAD CLASS | 3A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.740 INCHES NOMINAL | | THREAD QUANTITY PER INCH | 18 | | THREAD SERIES DESIGNATOR | UNF |
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