| MATERIAL | STEEL COMP 1020 OVERALL |
| MATERIAL DOCUMENT AND CLASSIFICATION | ASTM A575 ASSN STD SINGLE MATERIAL RESPONSE OR |
| ASTM A576 ASSN STD SINGLE MATERIAL RESPONSE OR |
| ASTM A108 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| SURFACE TREATMENT | PHOSPHATE MANGANESE OVERALL |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | DOD-P-16232 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| STYLE DESIGNATOR | ROUND |
| OUTSIDE DIAMETER | 2.187 INCHES NOMINAL |
| CROSS-SECTIONAL SHAPE STYLE | COUNTERBORED W/ APERTURE |
| MINOR THICKNESS | 0.250 INCHES NOMINAL |
| BODY DIAMETER | 1.312 INCHES NOMINAL |
| APERTURE DIAMETER | 0.968 INCHES NOMINAL |
| COUNTERBORE DIAMETER | 1.1249 INCHES MINIMUM AND |
| 1.1251 INCHES MAXIMUM |
| COUNTERBORE DEPTH | 0.375 INCHES NOMINAL |
| BODY THICKNESS | 0.250 INCHES NOMINAL |
| OVERALL THICKNESS | 0.500 INCHES NOMINAL |
| MOUNTING HOLE TYPE | ROUND, UNTHREADED, COUNTERBORED |
| MOUNTING HOLE DIAMETER | 0.219 INCHES NOMINAL |
| COUNTERBORE DEPTH | 0.125 INCHES NOMINAL |
| COUNTERBORE DIAMETER | 0.344 INCHES NOMINAL |
| MOUNTING HOLE ARRANGEMENT STYLE | SINGLE BOLT HOLE CIRCLE |
| BOLT CIRCLE HOLE QUANTITY | 3 |
| MOUNTING BOLT CIRCLE DIAMETER | 1.750 INCHES NOMINAL |
| SURFACE FINISH | 63.0 MICROINCHES BORE |
| SPECIAL FEATURES | A SECOND SET OF TWO BOLT HOLES ARE ON A BOLT HOLE CIRCLE WITH 1.750 IN. DIA; THE BOLT HOLE DIA. IS 0.169 INCHES IN DIA THRU |