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National Stock Number:
5306-00-067-3689
Federal Supply Class:
5306
National Item Identification Number:
000673689
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:
| 454388 | 4GP55 | ACUFAST AIRCRAFT PRODUCTS | | 454388 | 56878 | SPS TECHNOLOGIES, LLC | | 454388 | 77445 | RTX CORPORATION | | 454388 | 92215 | HOWMET GLOBAL FASTENING SYSTEMS INC |
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Techincal Specification:
| THREAD SERIES DESIGNATOR | UNF | | NOMINAL THREAD DIAMETER | 0.250 INCHES | | THREAD QUANTITY PER INCH | 28 | | THREAD CLASS | 1A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.520 INCHES MINIMUM | | FASTENER LENGTH | 1.180 INCHES MINIMUM AND | | 1.200 INCHES MAXIMUM | | MATERIAL | STEEL CORROSION RESISTING OVERALL | | MATERIAL DOCUMENT AND CLASSIFICATION | AMS 5616 ASSN STD SINGLE MATERIAL RESPONSE OVERALL | | SURFACE TREATMENT | PASSIVATE OVERALL | | HARDNESS RATING | 30.0 ROCKWELL C MINIMUM AND | | 38.0 ROCKWELL C MAXIMUM OVERALL | | HEAD STYLE | DEE CHAMFER | | HEAD DIAMETER | 0.590 INCHES MINIMUM AND | | 0.610 INCHES MAXIMUM | | HEAD HEIGHT | 0.180 INCHES MINIMUM AND | | 0.200 INCHES MAXIMUM | | DISTANCE FROM CENTERLINE TO FLAT | 0.135 INCHES MINIMUM AND | | 0.145 INCHES MAXIMUM | | EXTERNALLY RELIEVED BODY DIAMETER QUANTITY | 3 | | FIRST DIAMETER FROM HEAD | 0.246 INCHES MINIMUM AND | | 0.249 INCHES MAXIMUM | | SECOND DIAMETER FROM HEAD | 0.180 INCHES MINIMUM AND | | 0.190 INCHES MAXIMUM | | THIRD DIAMETER FROM HEAD | 0.246 INCHES MINIMUM AND | | 0.249 INCHES MAXIMUM | | DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER | 0.100 INCHES MINIMUM AND | | 0.110 INCHES MAXIMUM | | DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF SECOND DIAMETER | 0.260 INCHES MINIMUM AND | | 0.290 INCHES MAXIMUM | | DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF THIRD DIAMETER | 0.640 INCHES MINIMUM AND | | 0.700 INCHES MAXIMUM | | THE MANUFACTURERS DATA | | | MANUFACTURERS CODE | 56878 | | DESIGN CONTROL REFERENCE | 454388 |
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