Part Details | INTERNALLY RELIEVED BODY BOLT
5306-00-987-8621 An externally threaded fastener whose external threaded portion is of one nominal diameter. It has a concentric hole along the longitudinal centerline which may extend a part or the full length of the bolt. The concentric hole along the centerline may be counterbored and/or internally threaded at the head end or the bolt end. The head is designed to be held or driven by an external and/or internal driver. For items having a hole(s) perpendicular to the axis which meet the concentric hole along the longitudinal centerline, see BOLT, FLUID PASSAGE.
Alternate Parts: 476204859, 47-620-485-9, 5306-00-987-8621, 00-987-8621, 5306009878621, 009878621
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 53 | JAN 01, 1962 | 00-987-8621 | 06676 ( BOLT, INTERNALLY RELIEVED BODY ) |
REFERENCE DRAWINGS & PICTURES
HEXAGON
HEXAGON FLATS
CONCENTRIC HOLE UNTHREADED
Cross Reference | NSN 5306-00-987-8621
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| 47-620-485-9 | 97499 | BELL HELICOPTER TEXTRON INC.DBA BELL HELICOPTER |
Technical Data | NSN 5306-00-987-8621
| Characteristic | Specifications |
|---|---|
| THREAD SERIES DESIGNATOR | UNF |
| NOMINAL THREAD DIAMETER | 0.312 INCHES |
| THREAD QUANTITY PER INCH | 24 |
| THREAD CLASS | 3A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.440 INCHES MINIMUM |
| FASTENER LENGTH | 1.190 INCHES NOMINAL |
| STYLE DESIGNATOR | CONCENTRIC HOLE UNTHREADED |
| SHOULDER DIAMETER | 0.3735 INCHES MINIMUM AND 0.3745 INCHES MAXIMUM |
| SHOULDER LENGTH | 0.560 INCHES NOMINAL |
| CONCENTRIC HOLE DEPTH | 0.620 INCHES NOMINAL |
| CONCENTRIC HOLE DIAMETER | 0.188 INCHES MINIMUM AND 0.189 INCHES MAXIMUM |
| HEAD STYLE | HEXAGON |
| HEAD HEIGHT | 0.220 INCHES NOMINAL |
| WIDTH BETWEEN FLATS | 0.625 INCHES NOMINAL |
| HOLE CONFIGURATION STYLE | HEXAGON FLATS |
| HOLE TYPE | DRILLED |
| HOLE QUANTITY | 6 |
| HOLE DIAMETER | 0.062 INCHES NOMINAL |
| SPECIAL FEATURES | 0.245 IN TO 0.250 IN DIA BY 0.060 IN FILLET RADIUS BY 0.190 IN LG UNDERCUT FOR THD RELIEF |