Part Details | EXTERNALLY RELIEVED BODY BOLT
5306-01-185-5857 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: 27979212, 2797921-2, 27979212, 2797921-2, 5306-01-185-5857, 01-185-5857, 5306011855857, 011855857
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 53 | JUL 31, 1984 | 01-185-5857 | 06675 ( BOLT, EXTERNALLY RELIEVED BODY ) |
REFERENCE DRAWINGS & PICTURES
HEXAGON
Cross Reference | NSN 5306-01-185-5857
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| 2797921-2 | 55972 | HONEYWELL INTL INCDEFENSE AVIONICS SYSTEMS |
| 2797921-2 | K0662 | LEONARDO MW LTD |
Technical Data | NSN 5306-01-185-5857
| Characteristic | Specifications |
|---|---|
| THREAD SERIES DESIGNATOR | UNF |
| NOMINAL THREAD DIAMETER | 0.312 INCHES |
| THREAD QUANTITY PER INCH | 24 |
| THREAD CLASS | 2A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.372 INCHES MINIMUM AND 0.408 INCHES MAXIMUM |
| FASTENER LENGTH | 1.387 INCHES MINIMUM AND 1.403 INCHES MAXIMUM |
| HEAD STYLE | HEXAGON |
| HEAD HEIGHT | 0.223 INCHES MINIMUM AND 0.243 INCHES MAXIMUM |
| WIDTH BETWEEN FLATS | 0.555 INCHES MINIMUM AND 0.562 INCHES MAXIMUM |
| EXTERNALLY RELIEVED BODY DIAMETER QUANTITY | 3 |
| FIRST DIAMETER FROM HEAD | 0.160 INCHES MINIMUM AND 0.180 INCHES MAXIMUM |
| SECOND DIAMETER FROM HEAD | 0.760 INCHES MINIMUM AND 0.780 INCHES MAXIMUM |
| THIRD DIAMETER FROM HEAD | 0.995 INCHES MINIMUM AND 1.015 INCHES MAXIMUM |
| DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER | 0.261 INCHES MINIMUM AND 0.265 INCHES MAXIMUM |
| DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF THIRD DIAMETER | 0.303 INCHES MINIMUM AND 0.312 INCHES MAXIMUM |
| SPECIAL FEATURES | PAINT ONE COAT OF PRIMER TO MIL-P-23377 OR MMS 425 AND ONE COAT OF LUSTERLESS MATT BLACK NO. 3708 FED STD 595 TO TTE 527 ON HEAD OF SCREW ONLY |