| BOLT CIRCLE DIAMETER | 1.688 INCHES MINIMUM AND 1.698 INCHES MAXIMUM |
| BOLT HOLE DIAMETER | 0.266 INCHES MINIMUM AND 0.276 INCHES MAXIMUM |
| BOLT HOLE QUANTITY | 4 |
| FACE SEATING SURFACE CONDITION | MACHINED |
| FLANGE SECTION STYLE | PLAIN RECESSED FACE |
| FLANGE WIDTH | 2.188 INCHES NOMINAL |
| MATERIAL DOCUMENT AND CLASSIFICATION | QQ-S-763 CL 304 COND A FED SPEC SINGLE MATERIAL RESPONSE |
| MATERIAL | STEEL CORROSION RESISTING |
| RECESS DEPTH | 0.136 INCHES MINIMUM AND 0.141 INCHES MAXIMUM |
| RECESS DIAMETER | 1.854 INCHES MINIMUM AND 1.859 INCHES MAXIMUM |
| STYLE DESIGNATOR | SQUARE, ONE BOLT HOLE CIRCLE |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-F-27272 MIL SPEC SINGLE TREATMENT RESPONSE |
| SURFACE TREATMENT | PASSIVATE |
| THICKNESS | 0.229 INCHES MINIMUM AND 0.249 INCHES MAXIMUM |