| CRITICALITY CODE JUSTIFICATION | FEAT |
| FASTENER LENGTH | 0.802 INCHES MINIMUM AND 0.822 INCHES MAXIMUM |
| FEATURES PROVIDED | FINISHED HEAD |
| HARDNESS RATING | 26.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM OVERALL |
| HEAD HEIGHT | 0.178 INCHES MINIMUM AND 0.198 INCHES MAXIMUM |
| HEAD STYLE | HEXAGON |
| HOLE CONFIGURATION STYLE | HEXAGON FLATS |
| HOLE DIAMETER | 0.065 INCHES NOMINAL |
| HOLE QUANTITY | 1 |
| HOLE TYPE | DRILLED |
| MATERIAL DOCUMENT AND CLASSIFICATION | AMS 6322 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL | STEEL COMP 8740 OVERALL |
| NOMINAL THREAD DIAMETER | 0.250 INCHES |
| SPECIAL FEATURES | IAW TF33 ENGINEERING DIRECTIVE. ITEM HAS OTHER CRITICAL FEATURES SUCH AS TOLERANCE, FIT RESTRICTIONS OR APPLICATION. THIS ITEM IS LOCATED INTERNALLY AND IS PART OF THE MAIN ACCESSORY DRIVE. |
| WIDTH BETWEEN FLATS | 0.430 INCHES MINIMUM AND 0.439 INCHES MAXIMUM |
| SURFACE FINISH | 32.0 MICROINCHES THREADS |
| SURFACE FINISH | 63.0 MICROINCHES BEARING SURFACE OF HEAD |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | AMS 2400 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | CADMIUM OVERALL |
| THREAD CLASS | 3A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.802 INCHES MINIMUM AND 0.822 INCHES MAXIMUM |
| THREAD QUANTITY PER INCH | 20 |
| THREAD SERIES DESIGNATOR | UNIFIED NATIONAL COARSE (UNC) |