Part Details | EXTERNALLY RELIEVED BODY BOLT
5306-00-687-7388 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.
Alternate Parts: 383583, 383583, 383583, 383583, 5306-00-687-7388, 00-687-7388, 5306006877388, 006877388
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 53 | JAN 01, 1963 | 00-687-7388 | 06675 ( BOLT, EXTERNALLY RELIEVED BODY ) |
REFERENCE DRAWINGS & PICTURES
UNDERCUT HEXAGON
Cross Reference | NSN 5306-00-687-7388
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| 383583 | 92215 | ARCONIC GLOBAL FASTENERS & RINGS,INC. |
| 383583 | 80539 | SPS TECHNOLOGIES, LLCDBA AEROSPACE FASTENERS GROUP |
| 383583 | 93907 | TEXTRON FASTENING SYSTEMSDBA DECORAH OPERATIONS TFS |
| 383583 | 77445 | UNITED TECHNOLOGIES CORPORATIONDBA PRATT WHITNEY-SPARE PARTS |
Technical Data | NSN 5306-00-687-7388
| Characteristic | Specifications |
|---|---|
| THREAD SERIES DESIGNATOR | UNF |
| NOMINAL THREAD DIAMETER | 0.312 INCHES |
| THREAD QUANTITY PER INCH | 24 |
| NONSTANDARD THREAD PITCH DIAMETER | +0.2797 TO +0.2824 INCHES |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.673 INCHES MINIMUM |
| FASTENER LENGTH | 1.230 INCHES MINIMUM AND 1.250 INCHES MAXIMUM |
| MINIMUM TENSILE STRENGTH | 142000 POUNDS PER SQUARE INCH |
| HEAD STYLE | 3 UNDERCUT HEXAGON |
| HEAD DIAMETER | 0.550 INCHES MINIMUM AND 0.570 INCHES MAXIMUM |
| HEAD HEIGHT | 0.180 INCHES MINIMUM AND 0.200 INCHES MAXIMUM |
| WIDTH BETWEEN FLATS | 0.300 INCHES NOMINAL |
| EXTERNALLY RELIEVED BODY DIAMETER QUANTITY | 3 |
| FIRST DIAMETER FROM HEAD | 0.309 INCHES MINIMUM AND 0.312 INCHES MAXIMUM |
| SECOND DIAMETER FROM HEAD | 0.235 INCHES MINIMUM AND 0.245 INCHES MAXIMUM |
| THIRD DIAMETER FROM HEAD | 0.309 INCHES MINIMUM AND 0.312 INCHES MAXIMUM |
| DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER | 0.120 INCHES MINIMUM AND 0.140 INCHES MAXIMUM |
| DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF SECOND DIAMETER | 0.250 INCHES NOMINAL |
| DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF THIRD DIAMETER | 0.454 INCHES NOMINAL |