Part Details | INTERNALLY RELIEVED BODY BOLT
5306-01-121-1656 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: 74A4106402001, 74A410640-2001, 10115763, 5306-01-121-1656, 01-121-1656, 5306011211656, 011211656
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 53 | OCT 31, 1981 | 01-121-1656 | 06676 ( BOLT, INTERNALLY RELIEVED BODY ) |
REFERENCE DRAWINGS & PICTURES
UNDERCUT HEXAGON
COUNTERBORE UNTHREADED
Cross Reference | NSN 5306-01-121-1656
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| 74A410640-2001 | 76301 | BOEING COMPANY, THEDBA BOEING |
| 10115763 | A486G | NIMIKKEISTOKESKUS NCB FINLAND |
Technical Data | NSN 5306-01-121-1656
| Characteristic | Specifications |
|---|---|
| THREAD SERIES DESIGNATOR | UNJF |
| NOMINAL THREAD DIAMETER | 0.625 INCHES |
| THREAD QUANTITY PER INCH | 18 |
| THREAD CLASS | 3A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.300 INCHES NOMINAL |
| FASTENER LENGTH | 1.750 INCHES NOMINAL |
| MINIMUM TENSILE STRENGTH | 280000 POUNDS PER SQUARE INCH |
| STYLE DESIGNATOR | COUNTERBORE UNTHREADED |
| COUNTERBORE DIAMETER | 0.438 INCHES MINIMUM AND 0.440 INCHES MAXIMUM |
| COUNTERBORE DEPTH | 1.558 INCHES NOMINAL |
| CONCENTRIC HOLE DIAMETER | 0.406 INCHES MINIMUM AND 0.413 INCHES MAXIMUM |
| HEAD STYLE | 5 UNDERCUT HEXAGON |
| HEAD DIAMETER | 1.000 INCHES NOMINAL |
| HEAD HEIGHT | 0.093 INCHES NOMINAL |
| DISTANCE FROM CENTERLINE TO FLAT | 0.435 INCHES MINIMUM AND 0.440 INCHES MAXIMUM |
| SPECIAL FEATURES | 2 KEYWAYS IN THD END 0.125 IN. MIN TO 0.130 IN. MAX W BY 0.245 IN. LG |
| CRITICALITY CODE JUSTIFICATION | AASY |