| APERTURE DIAMETER | 3.500 INCHES NOMINAL |
| BOLT CIRCLE HOLE QUANTITY | 18 |
| COUNTERBORE DEPTH | 0.415 INCHES NOMINAL |
| COUNTERBORE DIAMETER | 3.6215 INCHES MINIMUM AND 3.6245 INCHES MAXIMUM |
| CROSS-SECTIONAL SHAPE STYLE | COUNTERBORED W/ APERTURE |
| MATERIAL DOCUMENT AND CLASSIFICATION | ASTM A108 ASSN STD ALL MATERIAL RESPONSES OVERALL |
| MATERIAL | STEEL COMP 1144 OVERALL OR STEEL COMP 1141 OVERALL OR STEEL COMP 1045 OVERALL |
| PROPRIETARY CHARACTERISTICS | PACS |
| MINOR THICKNESS | 0.060 INCHES NOMINAL |
| MOUNTING BOLT CIRCLE DIAMETER | 4.000 INCHES NOMINAL |
| MOUNTING HOLE ARRANGEMENT STYLE | SINGLE BOLT HOLE CIRCLE |
| MOUNTING HOLE TYPE | ROUND, THREADED |
| NOMINAL THREAD SIZE | 0.164 INCHES |
| OUTSIDE DIAMETER | 4.500 INCHES NOMINAL |
| OVERALL THICKNESS | 0.470 INCHES MINIMUM AND 0.480 INCHES MAXIMUM |
| SPECIAL FEATURES | OD THREADED 12-UN-2A; TWO ADDITIONAL MOUNTING HOLES 0.200 IN. MIN,0.206 IN. MAX DIA BY 0.250 IN. DEEP |
| STYLE DESIGNATOR | ROUND |
| SURFACE FINISH | 63.0 MICROINCHES INNER FACE AS MOUNTED |
| SURFACE FINISH | 63.0 MICROINCHES ONE FACE |
| THREAD QUANTITY PER INCH | 32 |
| THREAD SERIES DESIGNATOR | UNC |