| APERTURE DIAMETER | 0.5003 INCHES MINIMUM AND 0.5015 INCHES MAXIMUM |
| BOLT CIRCLE HOLE QUANTITY | 4 |
| CROSS-SECTIONAL SHAPE STYLE | COUNTERBORED W/ APERTURE |
| FIRST COUNTERBORE DEPTH | 0.060 INCHES NOMINAL |
| FIRST COUNTERBORE DIAMETER | 1.125 INCHES NOMINAL |
| HARDNESS RATING | 40.0 ROCKWELL C MINIMUM |
| MATERIAL DOCUMENT AND CLASSIFICATION | AMS5643 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL | STEEL COMP 630 OVERALL |
| PROPRIETARY CHARACTERISTICS | PACS |
| MINOR THICKNESS | 0.200 INCHES NOMINAL |
| MOUNTING BOLT CIRCLE DIAMETER | 1.650 INCHES NOMINAL |
| MOUNTING HOLE ARRANGEMENT STYLE | SINGLE BOLT HOLE CIRCLE |
| MOUNTING HOLE TYPE | ROUND, THREADED |
| NOMINAL THREAD SIZE | 0.190 INCHES |
| OUTSIDE DIAMETER | 1.998 INCHES MINIMUM AND 2.000 INCHES MAXIMUM |
| OVERALL THICKNESS | 0.540 INCHES NOMINAL |
| SECOND COUNTERBORE DEPTH | 0.280 INCHES NOMINAL |
| SECOND COUNTERBORE DIAMETER | 1.500 INCHES MINIMUM AND 1.502 INCHES MAXIMUM |
| STYLE DESIGNATOR | ROUND |
| SURFACE TREATMENT | PASSIVATE OVERALL |
| THREAD QUANTITY PER INCH | 32 |
| THREAD SERIES DESIGNATOR | UNC |