| BODY OUTSIDE RADIUS | 0.140 INCHES NOMINAL |
| BODY THICKNESS | 0.390 INCHES MINIMUM AND 0.410 INCHES MAXIMUM |
| BOLT CIRCLE HOLE QUANTITY | 12 |
| BOLT CIRCLE DIAMETER | 0.912 INCHES NOMINAL |
| CROSS-SECTIONAL SHAPE STYLE | CIRCULAR RECESS |
| FIRST RECESS DIAMETER | 3.063 INCHES NOMINAL |
| FIRST RECESS INSIDE HEIGHT | 0.217 INCHES NOMINAL |
| FLANGE THICKNESS | 0.018 INCHES MINIMUM AND 0.022 INCHES MAXIMUM |
| HOLE DIAMETER | 0.130 INCHES NOMINAL |
| INSIDE CORNER RADIUS | 0.090 INCHES NOMINAL |
| INSIDE DIAMETER | 1.750 INCHES NOMINAL |
| MATERIAL DOCUMENT AND CLASSIFICATION | QQ-A-250/1 FED SPEC 1ST MATERIAL RESPONSE OR QQ-A-250/8 FED SPEC 2ND MATERIAL RESPONSE OR QQ-A-250/11 FED SPEC 3RD MATERIAL RESPONSE |
| MATERIAL | ALUMINUM ALLOY 1100 OR ALUMINUM ALLOY 5052 OR ALUMINUM ALLOY 6061 |
| PERIPHERAL SHAPE STYLE | ROUND, MULTI HOLES |
| PROPRIETARY CHARACTERISTICS | PACS |
| MOUNTING OPENING SHAPE STYLE | UNTHREADED HOLE |
| OUTSIDE CORNER RADIUS | 0.120 INCHES NOMINAL |
| OUTSIDE DIAMETER | 3.080 INCHES MINIMUM AND 3.086 INCHES MAXIMUM |
| SECOND RECESS INSIDE HEIGHT | 0.604 INCHES MINIMUM AND 0.619 INCHES MAXIMUM |
| SECURING DEVICE TYPE | SPECIAL |
| SPECIAL FEATURES | 0.078 IN. HOLE DIA NINE PLACES; 0.150 IN. HOLE DIA THREE PLACES |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-C-5541,CL 1A MIL SPEC SINGLE TREATMENT RESPONSE |
| SURFACE TREATMENT | CHROMATE |