Part Details | EXTERNALLY RELIEVED BODY BOLT
5306-00-761-3251 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: 557570, 557570, 557570, 5306-00-761-3251, 00-761-3251, 5306007613251, 007613251
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 53 | DEC 07, 1966 | 00-761-3251 | 06675 ( BOLT, EXTERNALLY RELIEVED BODY ) |
REFERENCE DRAWINGS & PICTURES
HEXAGON
Cross Reference | NSN 5306-00-761-3251
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| 557570 | 80539 | SPS TECHNOLOGIES, LLCDBA AEROSPACE FASTENERS GROUP |
| 557570 | 77445 | UNITED TECHNOLOGIES CORPORATIONDBA PRATT WHITNEY-SPARE PARTS |
| 557570 | 0EEG3 | VALCO COGOVERNMENT SALES OFFICE |
Technical Data | NSN 5306-00-761-3251
| Characteristic | Specifications |
|---|---|
| THREAD SERIES DESIGNATOR | UNF |
| NOMINAL THREAD DIAMETER | 0.375 INCHES |
| THREAD QUANTITY PER INCH | 24 |
| NONSTANDARD THREAD PITCH DIAMETER | +0.3420 TO +0.3449 INCHES |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.660 INCHES MINIMUM |
| FASTENER LENGTH | 3.210 INCHES MINIMUM AND 3.230 INCHES MAXIMUM |
| HEAD STYLE | HEXAGON |
| HEAD HEIGHT | 0.209 INCHES MINIMUM AND 0.229 INCHES MAXIMUM |
| WIDTH BETWEEN FLATS | 0.553 INCHES MINIMUM AND 0.564 INCHES MAXIMUM |
| EXTERNALLY RELIEVED BODY DIAMETER QUANTITY | 3 |
| FIRST DIAMETER FROM HEAD | 0.373 INCHES MINIMUM AND 0.374 INCHES MAXIMUM |
| SECOND DIAMETER FROM HEAD | 0.315 INCHES MINIMUM AND 0.325 INCHES MAXIMUM |
| THIRD DIAMETER FROM HEAD | 0.373 INCHES MINIMUM AND 0.374 INCHES MAXIMUM |
| DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER | 0.540 INCHES MINIMUM AND 0.560 INCHES MAXIMUM |
| DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF SECOND DIAMETER | 2.030 INCHES MINIMUM AND 2.050 INCHES MAXIMUM |
| DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF THIRD DIAMETER | 2.510 INCHES MINIMUM AND 2.570 INCHES MAXIMUM |
| PART NAME ASSIGNED BY CONTROLLING AGENCY | NAVY SPECIAL PROJECT |